1. The Collie Eye Anomaly;Barnett;Vet. Rec.,1969
2. Comparative Aspects of Canine Hereditary Eye Disease;Barnett;Adv. Vet. Sci. Comp. Med.,1976
3. Ocular Fundus Anomaly in the Collie;Donovan;J. Am. Vet. med. Ass.,1965
4. The Collie Eye Anomaly;Lawson;Vet. Rec.,1969