共 23 条
[21]
DISTRIBUTION AND ABUNDANCE OF SEALS IN EASTERN BEAUFORT SEA
[J].
JOURNAL OF THE FISHERIES RESEARCH BOARD OF CANADA,
1977, 34 (07)
:976-988
[22]
Stirling I., 1977, ADAPTATIONS ANTARCTI, P741
[23]
USHER PJ, 1969, ARCTIC, V22, P120