TY  - RPRT
TI  - Double-observer approach to estimating egg mass abundance of vernal pool breeding amphibians
AU  - Evan H. Campbell Grant
AU  - Robin E. Jung
AU  - James D. Nichols
AU  - James E. Hines
PY  - 2005
DO  - 10.1007/s11273-004-7524-7
UR  - https://pubs.usgs.gov/publication/5224452
ID  - 5224452
ER  -