共 16 条
[3]
BRAUN RK, 1973, AM J VET RES, V34, P1127
[4]
CORIA MF, 1978, J AM VET MED ASSOC, V172, P449
[6]
VIRAL-INFECTION OF BOVINE FETUS AND ITS ENVIRONMENT
[J].
ARCHIV FUR DIE GESAMTE VIRUSFORSCHUNG,
1973, 41 (1-2)
:86-98
[7]
KAHRS RF, 1970, J AM VET MED ASSOC, V156, P1443
[8]
KAHRS RF, 1970, J AM VET MED ASSOC, V156, P851
[9]
KENDRICK JW, 1971, AM J VET RES, V32, P533
[10]
MALMQUIST WA, 1968, J AM VET MED ASSOC, V152, P763