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3. Die Leptospirose des Schweines;Kemenes;Mh. Vet.-Med.,1977
4. Leptospira-induced repeated abortion in sows;Kemenes;Acta Vet. Acad. Sci. Hung.,1977
5. Leptospirosis in swine;Ryley;Aust. Vet. J.,1956