Authors:
TEUFFERT J
OHLINGER VF
WOHLFARTH E
SCHOPECK W
HAAS B
Citation: J. Teuffert et al., INVESTIGATIONS ON THE OCCURRENCE OF PORCI NE REPRODUCTIVE AND RESPIRATORY SYNDROME .1. ITS COURSE AND ECONOMIC-EFFECTS, Tierarztliche Umschau, 48(9), 1993, pp. 539