共 35 条
[31]
VANBALEN JH, 1987, ARDEA, V75, P1
[32]
VANNOORDWIJK AJ, 1984, J ANIM ECOL, V53, P533
[34]
WEISE CM, 1979, AUK, V96, P40
[35]
WILKINSON L, 1987, SYSTAT SYSTEM STATIS