TY  - RPRT
TI  - Habitat characteristics of polar bear terrestrial maternal den sites in northern Alaska
AU  - George M. Durner
AU  - Steven C. Amstrup
AU  - Anthony S. Fischbach
PY  - 2003
DO  - 10.14430/arctic602
UR  - https://pubs.usgs.gov/publication/70006980
ID  - 70006980
ER  -