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Veterinarno-Meditsinski Nauki|January 1, 1987
[Typing of Newcastle virus isolates by mean death time of chickens in the cloacal test]G KhadzhievVeterinarno-Meditsinski Nauki|January 1, 1982
[Comparative study of strains of Newcastle disease virus in cell cultures of chick embryo fibroblast]G KhadzhievVeterinarno-Meditsinski Nauki|January 1, 1982
[Plaque formation by strains of Newcastle disease virus in monolayers of chick embryo fibroblasts]G KhadzhievVeterinarno-Meditsinski Nauki|January 1, 1976
[Study of the immunogenic properties of 3 lentogenic strains of the Newcastle disease virus isolated in Bulgaria]K Obreshkov, G KhadzhievVeterinarno-Meditsinski Nauki|January 1, 1977
[Immunogenic properties of 3 local lentogenic strains of the Newcastle disease virus used in the spray method of vaccination]K Obreshkov, G KhadzhievVeterinarno-Meditsinski Nauki|January 1, 1981
[Properties of local velogenic strains of Newcastle disease virus in poultry]G Khadzhiev, N ShishkovVeterinarno-Meditsinski Nauki|January 1, 1979
[Vaccination schemes against Newcastle disease in poultry]G Khadzhiev, K Obreshkov, G KiretchievVeterinarno-Meditsinski Nauki|January 1, 1976
[Experimental infection with bovid herpesvirus 2]M Dilovski, G Khadzhiev, S TodorovaVeterinarno-Meditsinski Nauki|January 1, 1977
[Attempts at specific immunoprophylaxis against herpes mammillitis]M Dilovski, P Tekerlekov, G KhadzhievVeterinarno-Meditsinski Nauki|January 1, 1976
[Study of an immunization plan for broilers via the spray method against Newcastle disease using vaccines from the Bl and La Sota strains]N Dimitrov, G Khadzhiev, R Cholakova, et al.Pageof 2