TY  - RPRT
TI  - Sleeping distance in wolf pairs in relation to the breeding season
AU  - L. David Mech
AU  - Steven T. Knick
PY  - 1978
DO  - 10.1016/s0091-6773(78)91631-0
UR  - https://pubs.usgs.gov/publication/5221099
ID  - 5221099
ER  -