TY  - RPRT
TI  - Using Forward Looking Infrared (FLIR) imagery to detect polar bear maternal dens: Operations manual
AU  - Geoffrey S. York
AU  - Steven C. Amstrup
AU  - Kristin S. Simac
PY  - 2004
UR  - https://pubs.usgs.gov/publication/70187772
ID  - 70187772
ER  -