共 13 条
- [1] EL-LEITHY M A, 1972, Egyptian Journal of Microbiology, V7, P79
- [2] FEDOROVA GN, 1964, LENINGRAD VET I, V26, P94
- [5] GORDON RE, 1973, USDA AGR HDB, V427, P1
- [7] Kluge R., 1963, Z BIENENFORSCH, V6, P141
- [8] McCray AH, 1917, J AGRIC RES, V8, P399
- [9] RIZZO MA, 1959, 16 P INT VET C MADR
- [10] TRILENKO VA, 1963, NAUCHNO K LENINGR VE, V12, P131