共 5 条
[1]
DILOVSKY M, 1976, ZBL VET MED B, V23, P785
[2]
GILMOUR NJL, 1979, VET REC, V104, P15, DOI 10.1136/vr.104.1.15
[4]
SMITH G. R., 1959, JOUR COMP PATHOL AND THERAP, V69, P116, DOI 10.1016/S0368-1742(59)80011-4
[5]
SNEDECOR GW, 1967, STATISTICAL METHODS, P130