TY  - RPRT
TI  - Detecting denning polar bears with forward looking infra-red imagery (FLIR)
AU  - Steven C. Amstrup
AU  - Geoff Weston-York
AU  - T. L. McDonald
AU  - R. Neilsen
AU  - Kristin S. Simac
AU  - George M. Durner
PY  - 2003
UR  - https://pubs.usgs.gov/publication/70187944
ID  - 70187944
ER  -