1. Superovulation, ovum collection, culture and transfer: a review;Foote;J. Dairy Sci.,1970
2. Studies on the ovum transfer in cattle with special reference to collection of ova by means of nonsurgical techniques;Sugie;Bulletin of Nat. Instit. of Anim. Industry,1972
3. Non-surgical bovine embryo recovery;Alexander;Vet. Rec.,1976
4. Demonstration of non-surgical collection and transfer of fertilized bovine embryos under farm conditions in Denmark;Rasbech,1976
5. Erfahrungen mit der unblutigen Eigewinnung beim Rind;Baumga̋rtner;Zuchthygiene,1977