9 research outputs found
Genetic variability in natural populations of Zeyheria montana mart. from the Brazilian Cerrado
- Author
- ALMEIDA E.R.
- Ana Maria Soares Pereira
- ARNHOLDT-SCHMITT B
- Bianca Waléria Bertoni
- BITTENCOURT JR. N.S.
- BRANDON K.
- Carlos Ferreira Damião Filho
- CIAMPI A.Y.
- CORRÊIA M.P.
- DAHER R.F.
- DOYLE J.J.
- Ernani Ronie Martins
- FELFILI J.M.
- FERREIRA JR. O.
- FERREIRA M.E.
- GAUER L.
- GILLIES A.C.M.
- GIULIETTI A.M.
- GOEL R.K.
- HAIG S.M.
- JACOME R.L.R.
- José Alexandre F. Diniz Filho
- KLINK A.C.
- KROTH M.A.
- LACERDA D.R.
- LOVELESS M.D.
- MANLY B.F.J
- Mariana Pires de Campos Telles
- MILLER M.P.
- MYERS N.
- PARKER P.G.
- RODRIGUES F.M.
- ROHLF F.J.
- RUSSELL J.R.
- SALES E.
- SANDHU S.S.
- SANTANA C.F.
- SCHNEIDER S.
- SOARES T.N.
- Solé-Cava A.M.
- SONG G.E.
- Spartaco Astolfi Filho
- Suzelei de Castro França
- WADT L.H.O.
- WELSH J.
- WILLIAMS J.G.W.
- WRIGT S.
- Publication venue
- 'FapUNIFESP (SciELO)'
- Publication date
- Field of study
Evaluation of diamond tool wear
- Publication venue
- 'Springer Science and Business Media LLC'
- Publication date
- Field of study
The Determinants of City Government Form in the Southern United States and its Impact on Public Policies
- Author
- Publication venue
- 'SAGE Publications'
- Publication date
- Field of study
Human-Robot Collaborated Exploration and Wayfinding: Orientation Awareness and itS Enhancement
- Author
- Publication venue
- 'SAGE Publications'
- Publication date
- Field of study
Extracellular Phytoplankton Production and Its Importance for Heterotrophic Activity of Bacteria
- Author
- C. Morana
- C. Nalewajko
- D.F. Bird
- D.J. Currie
- D.J. Currie
- D.T. Waite
- E. Fouilland
- E. Steemann Nielsen
- F. Azam
- G.C. Anderson
- G.E. Fogg
- H. Gomes
- H. Rai
- J. Marra
- J. Overbeck
- J.A. Hellebust
- J.B. Derenbach
- J.E. Hobbie
- J.F. Thomas
- J.J. Cole
- J.P. Descy
- K. Wolter
- K.A. Guseva
- M. Aizaki
- M. Sondergaard
- M.V. Fursenko
- R. Iturriaga
- R. Lasker
- R.D. Robarts
- R.T. Wrigt
- R.W. Eppley
- S. Samuel
- S.B. Baines
- U. Larson
- U. Larson
- V.I. Kuz’micheva
- V.V. Boulion
- W.A. Godlewska-Lipowa
- W.D. Watt
- W.G. Harrison
- W.J. Weibe
- Yu.I. Sorokin
- Publication venue
- 'Pleiades Publishing Ltd'
- Publication date
- Field of study
A new system for understanding the biodiversity in different nature reserves: capacity, connectivity and quality of biodiversity
- Author
- A. G. Fischer
- A. Lugo
- A. O. Nicholls
- A. S. Jaarsveld van
- B. Y. Ding
- C. C. Mann
- C. H. Flather
- C. K. Willis
- C. L. Shafer
- C. L. Shafer
- C. L. Shafer
- C. M. Liu
- D. E. Wilson
- D. K. Rosenberg
- D. Q. Li
- D. S. Slocombe
- D. S. Wilcove
- D. Schluter
- Dongliang Zhou
- H. A. Gleason
- H. J. Hu
- I. M. Turner
- J. F. Quinn
- J. M. Diamond
- J. R. Prendergast
- J. T. Kerr
- J. Terborgh
- Jiakuan Chen
- K. Henein
- L. D. Warman
- Luzhen Chen
- M. B. Falkner
- M. Cabeza
- M. E. Soule
- M. J. Yu
- M. R. Willig
- P. H. Williams
- P. Lin
- R. F. Noss
- R. H. Whittaker
- R. I. Vane-Wrigt
- R. J. Hobbs
- R. L. Pressey
- R. O. Slatyer
- S. J. Downes
- S. L. Pimm
- V. A. Borissoff
- W. Stolzenburg
- Wen Ye
- WRI/IUCN/UNEP
- Y. C. Song
- Ying Chang
- Yunqiu Ruan
- Z. J. Li
- Z. J. Li
- Z. J. Li
- Z. J. Li
- Z. J. Li
- Z. J. Li
- Z. J. Li
- Zhenji Li
- Publication venue
- 'Springer Science and Business Media LLC'
- Publication date
- Field of study
The Normal and Pathological Pigmentation of Oral Mucous Membrane: A Review
- Author
- Amir E Gorsky M, Buchner A, et. al.
- Araki S Murata K, Ushio K, et. al.
- Ashri N Gazi M.
- Bergamaschi O Kon S, Doine AI, et. al.
- Birek C Main JH.
- Brocheriou C Kuffer R, Verola O.
- Brown FH Housten GD.
- Buchner A Calderon S, Ramon Y.
- Buchner A Hansen LS.
- Buchner A Hansen LS.
- Cale AE Freedman PD, Lumermant H.
- Carranza FA.
- Chuong R Goldberg MH.
- Cockings JM Savage NW.
- Demas PN Bridenstine JB, Braun TW.
- Dummet CO Barens G.
- Dummett CO Barens G.
- Dummett CO.
- Dummett CO.
- Dyer PV Eveson JW.
- Frantzis TG Sheridan PJ, Reeve CM, et. al.
- Gazi MI.
- Giansanti JS Tillery DE, Olansky S.
- Gorlin RJ Cohen MN, Levin LS.
- Gorsky M Buchner A, Fundoianu-Dayan D, et. al.
- Greenberg MS.
- Grinspan D Abulafia J, Diaz J, et. al.
- Kleinegger CL Hammond HL, Finkelslein MW.
- Koplon BS Hurley HJ.
- Langford A Pohle HD, Gelderblom H, et. al.
- Laskaris G.
- Laskaris G.
- Lockhart PB.
- Mercado-Ortiz G Wilson D, Jiang DJ.
- Merchant HW Hayes LE, Ellison LT.
- Meyerson MA Cohen PR, Hymes SR.
- Odell EV Hodgson RP, Haskell R.
- Page LR Corio RL, Crawford BE, et. al.
- Patsakas A Demetriou N, Angelopoulos A.
- Perlmutter S Tal H.
- Porter SR Flint SR, Scully C.
- Prinz H.
- Ramer M Burakoff RP.
- Scully C.
- Simon E Buchner A, Bubis JJ.
- Steigmann S.
- Stern D.
- Tamizi M Taheri M.
- Teles JC Cardoso AS, Goncalves AR.
- Thldesley WR.
- Veraldi S Schianchi-Veraldi R, Scarabelli G.
- Weathers DR Corio RL, Crawford BE, et. al.
- Wrigt JM.
- Yeh CJ.
- Özbayrak S Dumlu A, Ercalik-Yalcinkaya S.
- Publication venue
- 'Jaypee Brothers Medical Publishing'
- Publication date
- Field of study
Die Pathologie der Linse
- Author
- Abelsdorff
- Abramowicz
- Abreu
- Accardi
- Ackermann
- Adamantiades
- Adams
- Adams
- Adler
- Adler
- Alajmo
- Alajmo
- Alajmo
- Alfing
- Allende
- Alling
- Altschul
- Androgué
- Arganaraz
- Ascher
- Ascher
- Ascher
- Asher
- Aulamo
- Aulamo
- Axenfeld
- Axenfeld
- B Onfray
- B von
- B Woods
- Badot
- Baecker
- Balcarek
- Ballantyne
- Bane
- Baquis
- Barberi
- Barker
- Barletta
- Bartels
- Bartels
- Battista
- Begué
- Bencini
- Berger
- Bernard
- Berner
- Best
- Best
- Betsch
- Bhadoni
- Bianchi
- Bier
- Bietti
- Biffis
- Birch-Hirschfeld
- Birch-Hirschfeld
- Blaickner
- Blatt
- Blegvad
- Boente
- Boeve
- Bontz
- Bossalino
- Bothmann
- Bourne
- Bourne
- Bourquin
- Braun
- Braun
- Braun
- Braun
- Brazeau
- Brobeck
- Brunberger
- Bryan
- Bunge
- Burdon-Cooper
- Burk
- Burky
- Burky
- Busacca
- Busacca
- Busacca
- Busacca
- Butler
- Butler
- Butler
- Butler
- Butler
- Böhmig
- Bücklers
- Bücklers
- Bücklers
- Bücklers
- Bücklers
- Bücklers
- Bücklers
- Bücklers
- Bücklers
- Bücklers
- C Lo
- Cahane
- Carmi
- Castrecana
- Castroviego
- Cattaneo
- Cattaneo
- Cattaneo
- Cattaneo
- Cattaneo
- Cavara
- Cavka
- Cavka
- Cavka
- Chatllous
- Chiazzaro
- Ciaccio
- Ciaccio
- Cirincione
- Clapp
- Clapp
- Cole
- Comberg
- Comberg
- Comberg
- Comberg
- Comberg
- Cords
- Cords
- Cowan
- Cozzoli
- Cramer
- Crebbin
- Cresswell
- Crisp
- Custodis
- Czellitzer
- Dallos
- Dallos
- Daniels
- Dantrelle
- Davids
- Davis
- Deutschmann
- Dinger
- Dinger
- Donski
- Dor
- Dor
- Dufour
- Duke-Elder
- Duke-Elder
- Duke-Elder
- Durr
- Duyse van
- Dvorzec
- D’Asaro-Biondo
- d’Oswaldo
- d’Oswaldo
- Eisler
- Elkes
- Elschnig
- Enroth
- Eranzeschetti
- Eranzeschetti
- Eranzeschetti
- Eranzeschetti
- Eranzeschetti
- Erggelet
- Erggelet
- Erggelet
- Erggelet
- Erggelet
- Erlanger
- Evans
- Farkas
- Fast
- Fazzari
- Fecht
- Feigenbaum
- Feigenbaum
- Fernandes-Balbuena
- Ferrari
- Filippi-Gabardi
- Filippi-Gabardi
- Fischer
- Fischer
- Fischer
- Fischer
- Fischer
- Fischer
- Fischer
- Fischer
- Fleischer
- Fleischmann
- Follnea
- Ford
- Foroni
- Fouassier
- Franta
- Franz
- Frenkel
- Friedmann
- Friedrich
- Friedrich
- Fuchs
- Gabrielides
- Gabrzewicz
- Gaedertz
- Gaiser
- Galante
- Gallemaerts
- Gallemarts
- Ganelina-Natanson
- Garfunkel
- Genet
- Germani
- Giannantoni
- Giannantoni
- Giannantoni
- Giannantoni
- Gifford
- Gifford
- Gifford
- Gifford
- Gil
- Glasbläserstar
- Glücksmann
- Gnad
- Goldfreder
- Goldmann
- Goldmann
- Goldmann
- Goldmann
- Goldmann
- Goldmann
- Goldmann
- Goldmann
- Goldmann
- Goldmann
- Goldmann
- Goldschmidt
- Goldschmidt
- Goldschmidt
- Golloway
- Goto
- Goulden
- Goulden
- Goulden
- Goulden
- Goulden
- Gourfein
- Grossschopf
- Grzedzielski
- Grönholm
- Gualdi
- Gualdi
- Guerra
- Gurvic
- Gutmann
- Gutzeit
- Hagen
- Halbertsma
- Hamann
- Handmann
- Handmann
- Handmann
- Handmann
- Hanssen
- Harms
- Hartmann
- Heckel
- Heider
- Heine
- Heintz
- Henke
- Hertel
- Hertel
- Hesse
- Heuven van
- Heuven van
- Hewitt
- Hildesheimer
- Hildesheimer
- Hildesheimer
- Hippel von
- Hippel von
- Hippel von
- Hippel von
- Hoeve van der
- Hoeve van der
- Hoeve van der
- Hoeve van der
- Hoeve van der
- Hoeve van der
- Hoeve van der
- Holloway
- Hollós
- Holm
- Holm
- Holstein
- Hornback
- Horniker
- Horniker
- Horton
- Horton
- Hosford
- Hosoya
- Hossmann
- Hudson
- Hulla
- Hulla
- Hulla
- Igersheimer
- Igersheimer
- Ikaza
- Ikeda
- Isakowitz
- Isnel
- Israel
- Iven
- Jackson
- Jaensch
- Jaensch
- Jaensch
- James
- Jarmerstedt
- Jasinski
- Jess
- Jess
- Jess
- Jess
- Jess
- Jess
- Jess
- Jirmann
- Jofe
- John
- Josuran
- Juhász-Schaffer
- Juler
- K Al
- Kahoun
- Kaplan
- Karelus
- Kasagawa
- Kaufmann
- Kaufmann
- Kerb
- Kesler
- Kienecker
- Kirby
- Kirby
- Kirby
- Kirby
- Kirby
- Kirby
- Kirby
- Kirby
- Kirby
- Kishino
- Kistasawa
- Kistler
- Kleiber
- Knapp
- Knobloch
- Knobloch
- Knüsel
- Koby
- Koch
- Koll
- Kolmer
- Komura
- Koteles
- Kranz
- Kranz
- Krasso
- Kraupa
- Kraupa
- Kraupa
- Kraupa
- Kraupa
- Kraupa
- Krause
- Krause
- Kredbová
- Kremensengskaja
- Kronfeld
- Kronfeld
- Krttschewski
- Kubik
- Kubik
- Kubik
- Kubik
- Kukán
- Kunifusa
- Kunz
- Kurz
- Kurz
- Kyriellis
- Kyriellis
- Kyriellis
- Kögel
- Köppl
- Kümmell
- L Andersen
- L Andersen
- L Andersen
- L Day
- Laedeeich
- Lauber
- Lauber
- Lauber
- Lavagna
- Lavagna
- Lavagna
- Law
- Lebensohn
- Lederer
- Lederer
- Lenhard
- Lenhard
- Lenz
- Leonardi
- Letchworth
- Levy
- Lewina
- Lewis
- Lewis
- Lichtwitz
- Lieben
- Lieben
- Lloyd
- Loddoni
- Loddoni
- Luciano
- Lumbroso
- Léopold-Lévi
- Löwenstein
- Löwenstein
- Löwenstein
- Löwenstein
- Löwenstein
- M Catana
- Mackay
- Magnasco
- Magnasco
- Maillard
- Malkin
- Malkin
- Mamoli
- Mangold
- Marcove
- Margotta
- Marsh
- Marsh
- Mattews
- Mawas
- Mayou
- Mazal
- Meesmann
- Meesmann
- Meesmann
- Meesmann
- Meesmann
- Meesmann
- Meesmann
- Meesmann
- Meesmann
- Mehlhose
- Meisnee
- Meissner
- Meissner
- Metzger
- Metzger
- Metzger
- Meves
- Meyer
- Meyer
- Meyer
- Meyer
- Michail
- Michail
- Michail
- Michail
- Michail
- Michail
- Miklos
- Miklos
- Miklos
- Mills
- Mironenko
- Moeller
- Monjukowa
- Monjukowa
- Montanelli
- Moore
- Morax
- Morax
- Morax
- Moretti
- Mulock
- Mursin
- Müller
- Müller
- Müller
- Müller
- Nazarow
- Neuschüler
- Nicloux
- Nicolau
- Nicolau
- Nicolo
- Nida
- Niwa
- Nordmann
- Nordmann
- Nordmann
- Nordmann
- Nordmann
- Nordmann
- Ollendorf
- Oltmanns
- O’Brien
- O’Brien
- O’Brien
- O’Brien
- O’Brien
- O’Brien
- Pace-Cameron
- Paderstein
- Padovani
- Pagani
- Palomar de la
- Pandelesco
- Panico
- Panico
- Pasquini
- Passow
- Pastega
- Pautrier
- Pavia
- Pavia
- Pavia
- Pavia
- Peimlin
- Pelláthy
- Pelláthy
- Pelláthy
- Pelláthy
- Pelugk
- Pelugk
- Perri
- Perri
- Peter
- Peterdy
- Peters
- Peters
- Pflüger
- Pilmans
- Pinard
- Piotrowski
- Pitsch
- Planta
- Pokrowski
- Politzer
- Poljak
- Poos
- Prieur
- Quaglio
- Quaglio
- Quint
- Rabinowitsch
- Raeder
- Rasmussen
- Rauh
- Rauh
- Rauh
- Rauh
- Reese
- Rehsteiner
- Rehsteiner
- Rehsteiner
- Reuling
- Reverberi
- Rhodes
- Riedl
- Riehm
- Riehm
- Rifat
- Rinaldi
- Ringelhan
- Rochat
- Rodigina
- Roggenbau
- Rohrschneider
- Rohrschneider
- Rohrschneider
- Rohrschneider
- Rohrschneider
- Rollet
- Rollet
- Rollet
- Romer
- Rosa
- Roslavcev
- Rossi
- Rowland
- Rowland
- Rutberg
- Ryer
- Rötth
- Rötth
- Rötth
- S Colosi
- Sabata
- Saeger
- Safar
- Safar
- Safar
- Sainton
- Salgado
- Salit
- Salit
- Sallmann
- Sallmann
- Salus
- Salvati
- Salvati
- Salzer
- Salzer
- Samoilov
- Sander
- Sander
- Sanna
- Santori
- Sato
- Sattler
- Schieck
- Schieck
- Schilling
- Schläpfer
- Schläpfer
- Schläpfer
- Schläpfer
- Schläpfer
- Schmerl
- Schmerl
- Schmerl
- Schneider
- Schneider
- Schnyder
- Schnyder
- Schnyder
- Schweinitz
- Schöpfer
- Scotti
- Scotti
- Sedan
- Sedan
- Seissiger
- Sgalzitti
- Sgrosso
- Shastid
- Shastid
- Shepardson
- Shibata
- Shimoyama
- Shoyi
- Shoyi
- Siegrist
- Siegrist
- Siegrist
- Siegrist
- Slutzkin
- Smith
- Smith
- Sohby
- Sohby
- Sorsby
- Spindler
- Spirito
- Srinivasan
- Staub
- Steindorff
- Stern
- Stine
- Stoewer
- Stoewer
- Stoewer
- Stoewer
- Stoljar
- Streife
- Strickler
- Strong
- Stöwer
- Stöwer
- Swigert
- Szekely
- Szillinsky
- Szily
- Szily
- Szily
- Szily
- Sézary
- Sézary
- Tallei
- Terrien
- Terrien
- Teulières
- Thaden
- Theobald
- Thiel
- Thomson
- Tille
- Tomh
- Trantas
- Trappe
- Tron
- Tron
- Trubin
- Tsuji
- Tóth
- Törö
- Törö
- Umetani
- Urbanek
- Vancea
- Vannas
- Veil
- Velter
- Veltisew
- Verhoeff
- Verhoeff
- Villani
- Vitello
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Vogt
- Volmer
- Vormann
- Vos
- Waardenburg
- Waardenburg
- Waetzold
- Wagner
- Weigelin
- Weill
- Weill
- Weill
- Weinstein
- Weinstein
- Weiss
- Werner
- Werringloer
- Wessely
- Westhues
- Weve
- Wibaut
- Wick
- Wilczek
- Wilmsen
- Witebsky
- Wood
- Woods
- Woods
- Wrigt
- Wölfflin
- Yoshimoto
- Young
- Zahor
- Zeemann
- Zimmermann
- Zoldan
- Publication venue
- 'Springer Science and Business Media LLC'
- Publication date
- 01/01/1933
- Field of study
Kohlenwasserstoffe. Natürliche Bitumina (Das Erdöl und seine Verwandten)
- Author
- A Gerrard
- A Hofmann
- A Hofmann
- A Koepsel
- A Kronstein
- A Labat
- A Maßen
- A Maßen
- A Maßen
- A Ritzel
- A Scott
- A Scott
- A Waller
- A Waller
- Abbot
- Adrian
- Ahrens
- Alcock
- Alechin
- Alechin
- Altenberg
- Altschul
- Altschul
- Altschul
- Amar
- Ampola
- Ampola
- Ampola
- Andre
- Andrée
- Andrée
- Anger
- Anschütz
- Anschütz
- Anschütz
- Anschütz
- Anschütz
- Anselmino
- Archetti
- Archibald
- Armstrong
- Arnold
- Aronstein
- Aronstein
- Aschan
- Aschan
- Aschan
- Aschan
- Aschan
- Aschan
- Aschan
- Aten
- Aubel Van
- Aubel Van
- Auger
- Auger
- Auger
- Auger
- Auger
- Auger
- Auger
- Auger
- Avright
- B Collingwood
- B Delachanal
- B Drugman
- B Holmberg
- B Holmberg
- B Holmberg
- B Montgomerie
- B Moorell
- Baeyer
- Baeyer
- Baiard
- Baldwin
- Baley
- Bamberger
- Bardy
- Barnett
- Bartal
- Bassett
- Batlerow
- Battelli
- Baum
- Baumann
- Baumann
- Baume
- Baumstark
- Bayer
- Bayer
- Bayer
- Bayer
- Bayer
- Bayer
- Bayer
- Bayer
- Bayer
- Beaume
- Beck
- Beck
- Beck
- Beckmann
- Beckmann
- Becquerel
- Bei Le
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beilstein
- Beithien
- Beitthien
- Bell Le
- Belohoubek
- Bergmann
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Berthelot
- Bertrand
- Besson
- Besson
- Besson
- Besson
- Besson
- Besson
- Besson
- Bevad
- Bewad
- Bewad
- Bewad
- Bewad
- Bewad
- Bewald
- Beyerinck
- Beythien
- Bianchi
- Bianchini
- Biltz
- Biltz
- Biltz
- Biodie
- Biron
- Bischoff
- Blasdale
- Bllnsen
- Boargoin
- Boissieu
- Bolas
- Bolley
- Boltz
- Bone
- Bone
- Bone
- Bone
- Bone
- Bone
- Bone
- Bone
- Bone
- Bone
- Bonis
- Borodin
- Borri
- Borsche
- Bose
- Bouchard
- Bouchardat
- Bouchet
- Bougault
- Bourgoin
- Bourgoin
- Bourgoin
- Bourgoin
- Bouveault
- Bowne
- Bragg
- Braggs
- Brazier
- Breteau
- Briner
- Brodie
- Brodie
- Bruni
- Bruni
- Bruni
- Bruni
- Brunner
- Brunner
- Bryant
- Brücke
- Brühl
- Brühl
- Brühl
- Brühl
- Brühl
- Brühl
- Brühl
- Brühl
- Brühl
- Brühl
- Brühl
- Brühl
- Brühl
- Bucherer
- Buckton
- Buckton
- Bulterow
- Bunsen
- Bunsen
- Bunsen
- Bunsen
- Bunsen
- Bunsen
- Burgess
- Butlerow
- Butlerow
- Butlerow
- Butlerow
- Butlerow
- Butlerow
- Butlerow
- Butlerow
- Butlerow
- Butlerow
- Béhal
- C Grießheim
- C Herter
- C Mabery
- C Mahery
- C Mengarini
- C Montgomerie
- C Winther
- Cahours
- Cahours
- Cahours
- Cahours
- Cahours
- Cahours
- Cahours
- Cahours
- Cahours
- Cahours
- Cailletet
- Carius
- Carius
- Carlls
- Carrara
- Carrara
- Carrara
- Carrara
- Cattrell
- Caubet
- Caventou
- Cazeneuve
- Centnerzswer
- Centnerzswer
- CF Mabery
- Chablay
- Chablay
- Chablay
- Chablay
- Chabrié
- Chancel
- Chappius
- Charitschkoff
- Charitschkoff
- Charitschkoff
- Charitschkoff
- Ciamician
- Claus
- Coates
- Coates
- Coates
- Collie
- Collie
- Combes
- Combes
- Combes
- Comte Le
- Conghlin
- Coninck
- Cottrell
- Cottrell
- Coutelle
- Coutelle
- Cross
- Cross
- Crowther
- Crowther
- Crowther
- Crowther
- Crowther
- Czapek
- D Holde
- D Holde
- D Tsakalotos
- Daccomo
- Dale
- Dalton
- Damoiseau
- Darling
- Darling
- Day
- Delachanal
- Demareay
- Demole
- Demole
- Dennstedt
- Denzel
- Denzel
- Denzel
- Denzel
- Denzel
- Denzel
- Denzel
- Denzel
- Denzel
- Denzel
- Denzel
- Desgrez
- Desgrèz
- Desgrèz
- Dewar
- Dewar
- Dixon
- Dobrin
- Dobrin
- Dobriner
- Dobriner
- Dolezalek
- Domac
- Dony-Hénault
- Douzard
- Doyon
- Drechsel
- Dreser
- Drude
- Drude
- Drude
- Drude
- Drude
- Dubowski
- Dubowsky
- Dubowsky
- Duden
- Dumas
- Dumas
- Dumas
- Dumas
- Dumas
- Dumas
- Dupouy
- Dutoit
- Dutoit
- D’Ans
- E Banier
- E Beckmann
- E Bunte
- E Fortey
- E Graefe
- E Haworth
- E Mills
- E Salkowski
- Ehrenfeld
- Eichler
- Elbs
- Elbs
- Elbs
- Elbs
- Elbs
- Elbs
- Elbs
- Elfstrand
- Eltekow
- Eltekow
- Eltekow
- Eltekow
- Embley
- Embley
- Emich
- Emmerling
- Emmerling
- Endemann
- Engel
- Engler
- Engler
- Engler
- Engler
- Engler
- Engler
- Engler
- Engler
- Engler
- Engler
- Erdmann
- Erfle
- Erlenmeyer
- Erlenmeyer
- Erlenmeyer
- Erlenmeyer
- Eschbaum
- Etarcll
- Etard
- Euler
- EV Bahr
- Eve
- Eve
- Eve
- Everstein
- Eykman
- Eykman
- Eykman
- Eykman
- Eykman
- Eykman
- F Botazzi
- F Duchacek
- F Farrel
- F Mabery
- F Mabery
- F Mabery
- F Montgomerie
- F Power
- F Schwarz
- F Stengel
- F Swarts
- Faraday
- Faraday
- Faravelli
- Faworsky
- Fileti
- Firemann
- Fischer
- Fittig
- Flenry
- Fleurv
- Flourens
- Fokin
- Fontaine
- Forcrand
- Forcrand
- Forcrand De
- Forcrand De
- Fournier
- Franchimont
- Francis
- Francis
- Francis
- Frankland
- Frankland
- Frankland
- Frankland
- Frankland
- Frankland
- Frankland
- Frankland
- Frankland
- Franlforter
- Freund
- Freund
- Fridau
- Friedel
- Friedel
- Friedel
- Friedel
- Fritsch
- Förster
- Fühner
- Fürstenau
- G Antonow
- G Baume
- G Baume
- G Bcdländer
- G Jaffé
- G Jaffée
- G Knorre
- G Meyer
- G Mossier
- G Orlow
- Gabriel
- Gagarin
- Game
- Garnier
- Gastine
- Gautier
- Gehlhoff
- Geisse
- Gerlinger
- Geromont
- Geuther
- Giran
- Gladstone
- Gladstone
- Gladstone
- Gladstone
- Goldberg
- Goldschmidt
- Goldschmidt
- Goldschmidt
- Gorbow
- Gorbow
- Gossner
- Gotting
- Grabowsky
- Graefe
- Gray
- Greshoff
- Gresshoff
- Grignard
- Grignard
- Grignard
- Grignard
- Grigorowitsch
- Grimaldi
- Grimaldi
- Grimmusky
- Grimshaw
- Grimshaw
- Groves
- Groves
- Groves
- Guerin
- Guichard
- Guichard
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Gustavson
- Guttmann
- Guttmann
- Guttmann
- Guttmann
- Görke
- Görke
- H Bechold
- H Erdmann
- H Erdmann
- H Müller
- H Stanley
- H Wartenberg v.
- H Weller
- Haagen
- Haase
- Haase
- Haase
- Habermann
- Hahn
- Hainlen
- Haitinger
- Haitinger
- Hall
- Hamilton
- Hansen
- Hantzsch
- Hantzsch
- Hantzsch
- Hantzsch
- Happel
- Hardy
- Hardy
- Harries
- Harst Van den
- HE Erdmann
- Hecht
- Hecht
- Hedley
- Heintz
- Hell
- Henry
- Henry
- Henry
- Henry
- Henry
- Henry
- Henry
- Henry
- Henry
- Henry
- Henry
- Henry
- Hentschel
- Hermann
- Hermann
- Herz
- Herzfelder
- Herzfelder
- Herzfelder
- Herzfelder
- Herzfelder
- Herzfelder
- Herzfelder
- Herzig
- Hesse
- Hesse
- Himstedt
- Hirsch
- Hoff
- Hoffmann
- Hoffmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmann
- Hofmeister
- Hofmeister
- Holley
- Holley
- Hoppe-Seyler
- Hoppe-Seyler
- Houben
- Hunter
- Hunter
- Höfer
- Höfer
- Höfer
- Höfer
- Höfer
- Höfer
- Höfer
- Höfer
- Höfer
- Höfer
- Höfer
- Höfer
- Höfer
- Höfer
- Höland
- Höland
- Höland
- Höland
- Höland
- Ipatiew
- Ipatiew
- J Amar
- J Becquerel
- J Buckmaster
- J Collie
- J Dogiel
- J Feigel
- J Mills
- J Muck
- J Neumeister
- J Sand
- J Simpson
- J Thiele
- J Timmermans
- J Timmermans
- J Timmermans
- J Timmermans
- J Wadell
- Jackson
- Jacobsen
- Jaffée
- Jahn
- Jahn
- Jahn
- Jahn
- Jahn
- Jahn
- Jahn
- Jahn
- Jannasch
- Jannasch
- Jaroschenko
- Jocitsch
- Johanny
- Jorrisson
- Jourdan
- K Charitschkow
- K Schiff
- K Schiff
- Kahlenberg
- Kahlenberg
- Kailan
- Kannonikow
- Kanonikow
- Kanonnikow
- Kassner
- Kauffler
- Kautzsch
- Kautzsch
- Keboul
- Kedgrove
- Kekule
- Kekulé
- Kekulé
- Kelbe
- Kerez
- Kippenberger
- Kirpal
- Kisel
- Kishner
- Kishner
- Kißner
- Klason
- Kleeman
- Kleeman
- Kleeman
- Kleeman
- Kleeman
- Kleeman
- Kleeman
- Kleeman
- Kleeman
- Kleeman
- Kleeman
- Klobukow
- Kluge
- Kluge
- Kluge
- Knoevenagel
- Kobert
- Kobert
- Kolbe
- Kolbe
- Kondakow
- Kondakow
- Kondakow
- Kondakow
- Kondakow
- Konowaloff
- Konowalow
- Konowalow
- Konowalow
- Konowalow
- Konowalow
- Konowalow
- Konowalow
- Konowalow
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Krafft
- Kraft
- Kremel
- Kräfft
- Krämer
- Krämer
- Krämer
- Krämer
- Krämer
- Krämer
- Krämer
- Krécy
- Krüger
- Kudewitsch
- Kuenen
- Kuenen
- Kusnezow
- Kutscherow
- Köhnlein
- Köhnlein
- König
- L Jahn
- L Meyer
- L Meyer
- L Meyer
- L Volf
- Laby
- Laby
- Lachowicz
- Lachowicz
- Lachowicz
- Lachowicz
- Lachowicz
- Lachowicz
- Lachowicz
- Lacre De
- Lacy
- Ladenburg
- Ladenburg
- Ladenburg
- Ladenburg
- Ladenburg
- Ladenburg
- Ladenburg
- Ladenburg
- Ladenburg
- Lagermark
- Lagermark
- Landolt
- Landolt
- Landolt
- Landolt
- Landolt
- Laurent
- Laurent
- Lebeau
- Lebeau
- Lebedew
- Lebedew
- Lecco
- Leduc
- Leduc
- Leduc
- Leduc
- Lemoine
- Lemoine
- Lemoine
- Lennox
- Lentz
- Lermontow
- Lermontow
- Lespleau
- Levi
- Levy
- Levy
- Lidow
- Lidow
- Lieben
- Lieben
- Lieben
- Lieben
- Lieben
- Lieben
- Lieben
- Lieben
- Lieben
- Lieben
- Liebig
- Liebig
- Liebreich
- Limonowitsch
- Limpricht
- Lindemann
- Linebarger
- Linebarger
- Linebarger
- Linke
- Linnemann
- Linnemann
- Linnemann
- Linnemann
- Linnemann
- Linnemann
- Linnemann
- Linnemann
- Linnemann
- Linnemann
- Linnemann
- Linnemann
- Linnemann
- Lippmann
- Loeb
- Loeb
- Loewig
- Loewig
- Lohr
- Longainine
- Longi
- Longuinine
- Longuinine
- Longuinine
- Losanitsch
- Losanitsch
- Losanitsch
- Lustgarten
- Luynes
- Lwow
- Lwow
- M Hudson
- M Konowalow
- M Kusnezow
- M Kusnezow
- M Mayer
- M Meyer
- M Putochin
- M Reicher
- M Söhngen
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Mabery
- Maberyu
- MacGowan
- Magri
- Mahery
- Mai
- Malagutti
- Malbot
- Malbot
- Malbot
- Mallik
- Mansier
- Marchand
- Marcusson
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoff
- Markownikoffu
- Markownikow
- Markownikow
- Marquardt
- Marshall
- Masson
- Mayer
- Mead
- Merrill
- Merz
- Merz
- Merz
- Messinger
- Meyer
- Meyer
- Meyer
- Miasnikow
- Michael
- Michael
- Michaelis
- Michaelis
- Michel
- Miller
- Mills
- Mixter
- Moaneyrat
- Moissan
- Moissan
- Moissan
- Moissan
- Moissan
- Moissan
- Moissan
- Moissan
- Moissan
- Moissan
- Moissan
- Moissan
- Moissan
- Moissan
- Mokiewsky
- Monari
- Monari
- Morgan
- Morgan
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouneyrat
- Mouren
- Möslinojer
- Müller
- Müller
- Müller
- Müller
- Müller
- N Faworski
- N Grehant
- Nastjukoff
- Naudin
- Nef
- Nef
- Nernst
- Nernst
- Nesmjelow
- Neuberg
- Nevole
- Nicloux
- Nicloux
- Nicloux
- Nicloux
- Nicloux
- Nicloux
- Niederist
- Niederist
- Niederist
- Niederist
- Niederist
- Niederist
- Nieuwland
- Nobbe
- Norton
- Norton
- Norton
- Norton
- Novak
- O Coninck de
- O Coninck De
- O Coninck de
- O Coninck de
- O Coninck de
- O Loeb
- O Loeb
- Oeconomides
- Olszewski
- Olszewsky
- Oppenheim
- Oppenheim
- Orlowsky
- Orndorff
- P Falciola
- P Guye
- P Guye
- P Guye
- P Guye
- P Lebeau
- P Lebeau
- P Montgomerie
- P Rouvet
- Palmer
- Palmer
- Panics
- Paolini
- Paolini
- Partheil
- Partheil
- Partheil
- Pascal
- Paterno
- Paterno
- Paterno
- Patterson
- Patterson
- Patterson
- Patterson
- Patterson
- Patterson
- Pauwels
- Pawleski
- Pawlesky
- Pawlewski
- Pawlewski
- Pawlewsky
- Pawlow
- Pechmann
- Pelouze
- Pelouze
- Perkilljun
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkin
- Perkln
- Petrenko
- Pfeiffer
- Pfungst
- Pictet
- Pierre
- Pierre
- Pierre
- Pierre
- Pierre
- Pierron
- Pinner
- Piutti
- Plotnikow
- Plotnikow
- Polimanti
- Poncio
- Poni
- Popoff
- Popow
- Poppenberg
- Posner
- Pouret
- Preibisch
- Preibisch
- Preibisch
- Pribram
- Pribram
- Pribram
- Pribram
- Pribram
- Pribram
- Pribram
- Priedel
- Priedel
- Priedel
- Priedel
- Priedel
- Priedel
- Prudhomme
- Puchot
- Purdie
- Pvaschig
- R Dubois
- R Kayser
- R Kayser
- R Meyer
- R Mulzer
- R Schif
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Schiff
- R Stull
- R Zöpfle
- Rabuteau
- Radcliff
- Radiszewski
- Ray
- Raymanll
- Reboul
- Reboul
- Reboul
- Reboul
- Reboul
- Reboul
- Reboul
- Reboul
- Reboul
- Reboul
- Reboul
- Reboul
- Redgrove
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Regnault
- Reimer
- Renard
- Renard
- Renard
- Renard
- Renard
- Renard
- Renard
- Renard
- Renard
- Renard
- Rex
- Rex
- Rex
- Rex
- Rex
- Rex
- Reynolds
- Reynolds
- Reynolds
- Reynoso
- Richards
- Richards
- Richards
- Richards
- Richardson
- Richardt
- Richaud
- Richmond
- Riehe
- Riehe
- Rieth
- Romburgh
- Ronalds
- Rosanoff
- Rosanoff
- Rosenthaler
- Roth
- Ruff
- Rusconi
- S Crewdson
- S Ferner
- S Mailhe
- S Neustaßfurt
- Sabanejew
- Sabanejew
- Sabanejew
- Sabanejew
- Sabanejew
- Sabanejew
- Sabanejew
- Sabanejew
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatier
- Sabatierll
- Sachs
- Saint-Martin
- Sakurai
- Sawitsch
- Schacherl
- Schall
- Schall
- Schestukow
- Schestukow
- Schiff
- Schiff
- Schiff
- Schiff
- Schiff
- Schischkow
- Schischkow
- Schischkow
- Schlesinger
- Schlesinger
- Schmidt
- Schmidt
- Schmiedeberg
- Schmitz
- Schneider
- Schneider
- Schneider
- Schneider
- Schneider
- Scholl
- Scholl
- Scholle
- Schomburg
- Schorl
- Schorl
- Schorl
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schorlemmer
- Schramm
- Schultze
- Schwalb
- Schwalb
- Schwarz
- Schweissinger
- Schäffer
- Schönrock
- Schönrock
- Schönrock
- Schönrock
- Schönrock
- Schönrock
- Schöyen
- Seil
- Serullas
- Serullas
- Serullas
- Seyda
- Seyffert
- Shukowski
- Silva
- Silva
- Simonowitsch
- Simpson
- Simpson
- Simpson
- Simpson
- Simpson
- Singer
- Slator
- Slator
- Slator
- Slator
- Slator
- Solonina
- Solonina
- Sorabji
- Sorabji
- Sorabji
- Sorabji
- Sorabji
- Spencer
- Spencer
- Spencer
- Spindler
- Spindler
- Spindler
- Spindler
- Spring
- Spring
- Spring
- Spring
- Spring
- Spring
- Spring
- Stadelmeyer
- Steiner
- Steinmetz
- Stempnevsky
- Stenhouse
- Stenhouse
- Stepski
- Stern
- Stock
- Stockhause
- Stohmann
- Stohmann
- Stollé
- Stortenbecker
- Stubenrauch
- Stuffer
- Städel
- Städel
- Städel
- Subow
- Sudborough
- Suilliot
- Svedberg
- Swarts
- Swarts
- Swarts
- Swarts
- Swietoslawski
- Szenic
- T Thorpe
- Tawildarow
- Tawildarow
- Tawildarow
- Teepie
- Thiele
- Thiele
- Thiele
- Thiele
- Thiele
- Thiele
- Thomann
- Thomas
- Thomlinson
- Thomlinson
- Thomsen
- Thomsen
- Thomsen
- Thomsen
- Thomsen
- Thomsen
- Thomsen
- Thomsen
- Thomsen
- Thomsen
- Thomson
- Thomson
- Thomson
- Thomson
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Thorpe
- Tiemann
- Timmermans
- Timmermans
- Timmermans
- Timofejew
- Timofejew
- Timofejew
- Timofejew
- Tissier
- Tissier
- Tissot
- Tissot
- Tollens
- Tollens
- Tollens
- Traube
- Trechcinski
- Trechcinski
- TS Patterson
- Tschelinzeff
- Tschelinzeff
- Tschugaeff
- Ubbelohde
- Ubbelohde
- Utz
- Utz
- V Kazay
- V Marci
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Meyer
- V Pechmann
- V Romburgh
- V Wartenberg
- Veley
- Venable
- Venable
- Venable
- Vespignani
- Vetere
- Vignon
- Villard
- Villard
- Villard
- Villard
- Villard
- Villard
- Villard
- Villard
- Villard
- Villard
- Villard
- Villiers
- Vincent
- Vincentll
- Vitali
- Vitali
- W Bragg
- W Loeb
- W Misteli
- W Misteli
- W Mistelli
- W Schmid
- W Steinkopf
- W Tilden
- Wagner
- Wagner
- Wagner
- Wagner
- Wah
- Wahl
- Wahl
- Wahl
- Waiden
- Waiden
- Waiden
- Waiden
- Waiden
- Waiden
- Waiden
- Waiden
- Walfisz
- Walker
- Wallach
- Wallach
- Wanklyn
- Weegmann
- Weegmann
- Weegmann
- Weegmann
- Wegscheider
- Weinland
- Weinland
- Welling
- Wellisch
- Welt
- Welt
- White
- Whittaker
- Wichern
- Wichern
- Wilde De
- Williams
- Williams
- Winkler
- Winkler
- Winkler
- Winogradow
- Winter
- Winther
- Winther
- Winther
- Winther
- Wislicenus
- Wolff
- Woringer
- Woringer
- Worobjew
- Worstall
- Worstall
- Worstall
- Worstall
- Worstall
- Worstall
- Worstall
- Worstall
- Worstall
- Worstall
- Worstall
- Wreden
- Wright
- Wrigt
- Wroblewski
- Wyschnegradsky
- Wyschnegradsky
- Wyschnegradsky
- Wöhler
- Wöhler
- Würtz
- Würtz
- Würtz
- Würtz
- Würtz
- Würtz
- Würtz
- Würtz
- Würtz
- Würtz
- Young
- Young
- Young
- Young
- Young
- Young
- Young
- Young
- Young
- Z Kahan
- Zalessky
- Zaloziecki
- Zaloziecki
- Zaloziecki
- Zaloziecki
- Zaloziecki
- Zander
- Zander
- Zander
- Zander
- Zander
- Zander
- Zander
- Zander
- Zander
- Zeisel
- Zeisel
- Zeisel
- Zelinsky
- Zelinsky
- Zerewitinoff
- Zincke
- Zincke
- Zincke
- Zincke
- Zoubow
- Zubkoff
- Züblin
- Publication venue
- 'Springer Science and Business Media LLC'
- Publication date
- 01/01/1911
- Field of study