TY  - RPRT
TI  - Biological premonitors of earthquakes: A validation study
AU  - Leon Spelly Otis
AU  - W.H. Kautz
PY  - 1980
DO  - 10.3133/ofr801152
UR  - https://pubs.usgs.gov/publication/ofr801152
ID  - ofr801152
ER  -