TY  - RPRT
TI  - Use of urine in snow to indicate condition of wolves
AU  - L. David Mech
AU  - Ulysses S. Seal
AU  - Glenn D. DelGiudice
PY  - 1987
DO  - 10.2307/3801620
UR  - https://pubs.usgs.gov/publication/5222180
ID  - 5222180
ER  -