[Virus infections of cattle, their diagnosis and prevention in East Germany].
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000517:prevention & control*; D005859:Germany, East; D014777:Virus Diseases / Q000517:prevention & control / Q000662:veterinary*
Die Virusinfektionen des Rindes, ihre Diagnose und Bekämpfung in der DDR.