TY  - RPRT
TI  - Estimating age ratios and size of Pacific walrus herds on coastal haulouts using video imaging
AU  - Daniel H. Monson
AU  - Mark S. Udevitz
AU  - Chadwick V. Jay
PY  - 2013
DO  - 10.1371/journal.pone.0069806
UR  - https://pubs.usgs.gov/publication/70046371
ID  - 70046371
ER  -