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3. Den Normale Involutio Uteri hos Koen;Rasbech;Nord. Vet.-Med.,1950
4. The Influence of Delayed Uterine Involution & Endometritis on Bovine Fertility;Tennant;Cornell Vet.,1968
5. Repetitive in vivo Sampling of the Bovine Uterus under Field Conditions;Griffin;Br. vet. J.,1974