TY  - RPRT
TI  - Catastrophes and conservation: Lessons from sea otters and the Exxon Valdez
AU  - James A. Estes
PY  - 1991
DO  - 10.1126/science.254.5038.1596
UR  - https://pubs.usgs.gov/publication/1008045
ID  - 1008045
ER  -