- Publication venue
- Publication date
- 01/01/1993
- Field of study
- Publication venue
- 'US Geological Survey'
- Publication date
- 01/01/1994
- Field of study
- Publication venue
- Publication date
- 01/01/1988
- Field of study
- Publication venue
- Publication date
- 01/01/1995
- Field of study
- Publication venue
- 1990, 9, 1β20.
- Publication date
- 01/01/1990
- Field of study
- Publication venue
- Publication date
- 01/01/1991
- Field of study
- Publication venue
- Publication date
- 01/01/1990
- Field of study
- Publication venue
- Publication date
- 01/01/1991
- Field of study
- Publication venue
- Publication date
- 01/01/2002
- Field of study