1. Phillips CE: Safety testing hog cholera live virus modified vaccines. Proc US Livestock San Ass (70): 302–309, 1966
2. Titoli F, Gialletti L, Portugal FLC, Baldoni A: Ricerca di anticorpi contro il virus delia peste suina, ceppo vaccinale cinese. Arch Vet Ital (21): 401–411, 1970
3. Simonyi E: Titration of hog cholera antisera in tissue culture. Acta vet Acad Sci Hung (17): 63–72, 1967
4. Phillips CE: In vitro potency tests for anti-hog cholera antibodies: A test for anti-hog cholera serums and a test for herd exposure. Am J Vet Res (29): 1097–1102, 1968
5. Carbrey EA: The role of immune tolerance in transmission of hog cholera. J Am Vet Med Ass (146): 233–237, 1965