173 research outputs found
Breeding ecology and nest site selection in allopatric mainland Citril Finches Carduelis [citrinella] citrinella and insular Corsican Finches Carduelis [citrinella] corsicanus
Full text linkThe effects of sulfide cellulose waste water on the chemistry of the river Danube between Ehingen and Ulm West Germany and the mass development of Leptomitus-lacteus and Sphaerotilus-natans
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