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2. Textbook of Veterinary Anatomy;KM Dyce,2002
3. Evolution and functional morphology of the frontal sinuses in Bovidae (Mammalia: Artiodactyla), and implications for the evolution of cranial pneumaticity;AA Farke;Zool J Linnean Soc,2010
4. Lymphosarcoma of the frontal sinus and nasal passage in a cow;CB Crocker;J Am Vet Med Assoc,1998
5. Maxillary sinus cysts in two cattle;LD Mundell;J Am Vet Med Assoc,1996