1. A contribution to the etiology of delayed ovulation in the cow;Grünert;Dtsch. Tieraerztl. Wschr.,1976
2. Increased conception results in inseminated cows by intramuscular injection of gonadotropin-releasing hormone;Günzler;Berl. Munch. Tieraerztl Wochenschr.,1976
3. Improvement of first insemination results in cattle with gonadotropin releasing hormone;Goldveck;Inaug. Diss. Tieraerztl. Hochschule,1976