1. X-Ray Diagnosis of Tumourous Processes of the Nasal Cavities and Facial Sinuses of the Horse;Ammann;Wein. Tierarztl. Mschr,1971
2. Some Aspects of Equine Dental Radiography;Baker;Equine Vet. J.,1971
3. Cook , W. R. 34 19651966
4. Some Observations on the Anatomy and Physiology of the Equine Upper Respiratory Tract;Cook;Vet. Rec,1966