1. Outbreaks of Newcastle disease in parrots;Cavrini;Nuova Vet.,1960
2. A modified chicken embryo inoculation technique for the isolation of viruses from the respiratory tract of chickens;Fabricant;Avian Diseases.,1957
3. The isolation of Newcastle disease virus from a starling;Gillespie;Cornell Vet.,1950
4. The English sparrow as a natural carrier of Newcastle Disease virus;Gustafson;Amer. J. vet. Res.,1953