共 39 条
[4]
BEGG G, 1978, REP NATAL TOWN REG P, V41, P1
[5]
BENNETT BA, 1985, T ROY SOC S AFR, V45, P449
[7]
BLABER SJM, 1981, S AFR J SCI, V77, P305
[9]
COOPER J, 1976, Biological Conservation, V10, P239, DOI 10.1016/0006-3207(76)90001-X
[10]
DAVIES B R, 1982, Journal of the Limnological Society of Southern Africa, V8, P33