Authors: EHSER U MEHLHORN G MIETKE H

Citation: U. Ehser et al., INVESTIGATIONS ON THE INFLUENCE OF A BORD ETELLA LIVE VACCINE UPON OCCURRENCE AND SIGNIFICANCE OF RHINITIS ATROPHICAN SUUM AND THE INFECTION PRESSURE BY FIELD STRAINS OF THE CAUSAL AGENT, DTW. Deutsche tierarztliche Wochenschrift, 100(9), 1993, pp. 355-359