共 16 条
[4]
ESPMARK Y, 1971, Zeitschrift fuer Tierpsychologie, V29, P42
[5]
ESTES RD, 1979, Z TIERPSYCHOL, V50, P45
[6]
FEIST JD, 1976, Z TIERPSYCHOL, V41, P337
[7]
FRANCISSMITH K, 1978, 1978 WORLD C ETH APP
[8]
HOUPT K A, 1979, Equine Practice, V1, P9
[9]
Jeffcott L. B., 1972, Equine Veterinary Journal, V4, P209, DOI 10.1111/j.2042-3306.1972.tb03910.x
[10]
Klingel H., 1966, Zeitschrift fuer Tierpsychologie, V23, P72