TY  - RPRT
TI  - Polar bear maternal den habitat in the Arctic National Wildlife Refuge, Alaska
AU  - George M. Durner
AU  - Steven C. Amstrup
AU  - Ken J. Ambrosius
PY  - 2009
DO  - 10.14430/arctic361
UR  - https://pubs.usgs.gov/publication/70030573
ID  - 70030573
ER  -