共 3 条
[1]
Geist V., 1960, Memoranda Societatis pro Fauna et Flora Fennica Helsingfors, V35, P95
[2]
LERESCHE RE, 1968, THESIS U ALASKA
[3]
Simkin D. W., 1963, Journal of Wildlife Management, V27, P136, DOI 10.2307/3797791