TY  - RPRT
TI  - Kermit says the sky is falling, or amphibians as sentinels of change
AU  - Robert N. Fisher
PY  - 1997
DO  - 10.1890/0012-9658(1997)078[1289:kstsif]2.0.co;2
UR  - https://pubs.usgs.gov/publication/1015650
ID  - 1015650
ER  -