共 8 条
[1]
Calnek BW, 1959, AVIAN DIS, V3, P225, DOI [10.2307/1587671, DOI 10.2307/1587671]
[2]
CALNEK BW, 1960, AVIAN DIS, V4, P116
[3]
REED L. J., 1938, AMER JOUR HYG, V27, P493
[4]
Schaaf K., 1959, Avian Diseases, V3, P245, DOI 10.2307/1587673
[5]
SCHAAF K, 1955, AM J VET RES, V16, P627
[6]
SCHAAF K., 1958, AVIAN DIS, V2, P279, DOI 10.2307/1587528
[7]
SCHAAF K, 1955, AM J VET RESEARCH, V16, P327
[8]
SUMNER FW, 1957, AM J VET RES, V18, P717