1. Avian paramyxoviruses;Alexander;Vet. Bull.,1980
2. Isolation of influenza viruses from avian species in Great Britain;Alexander;Comp. Immun. Microbiol. infect. Dis.,1980
3. Isolation of Newcastle Disease virus from a wild mallard duck (Anas platyrhynchos);Alexander;Vet. Rec.,1979
4. The isolation and classification of tern virus: Influenza virus A/tern/South Africa/1961;Becker;J. Hyg.,1966
5. Isolement de virus grippaux chez differentes especes aviaires au Canada en 1978;Boudreault;Rev. Canad. Biol.,1981