共 16 条
[2]
BRUNSDON R V, 1971, New Zealand Veterinary Journal, V19, P19, DOI 10.1080/00480169.1971.33923
[6]
CROFTON HD, 1969, CORNELL VET, V59, P388
[7]
CVETKOVIC L, 1975, Acta Veterinaria (Belgrade), V25, P83
[9]
GORDON G, 1970, Mathematical Biosciences, V8, P209, DOI 10.1016/0025-5564(70)90151-3
[10]
GUIMARAES MP, 1976, ARQ ESC VET UNIV FED, V28, P9