1. Appel, M. J. G. (1987), Canine distemper virus. In: Virus Infections of Carnivores, 1st EditM. J. G. Appel, EdElsevier, The Netherlands, 133, 159
2. Canine distemper epizootic in lions, tigers and leopards in North America;Appel;Journal of Veterinary Diagnostic Investigation,1994
3. Budd, J. (1981), Distemper. In: Infectious Diseases of Wild Mammals, 2nd Edit, J. W. Davis, L. H. Karstad and D. O. Trainer, Eds, Iowa State University Press, Iowa, 31, 44
4. Pathologic and immunohistochemical studies of morbillivirus infection in striped dolphins (Stenella coeruleoalba);Domingo;Veterinary Pathology,1992
5. Dungworth, D. L. (1993), The respiratory system. In: Pathology of Domestic Animals, 4th Edit, J. V. F. Jubb, P. C. Kennedy and N. Palmer, Eds, Academic Press, New York, 617, 624