1. Comparison of the structural polypeptides of four avian paramyxoviruses;Alexander;Arch. Virol.,1974
2. Avain paramyxoviruses;Alexander;Vet. Bull.,1980
3. Newcastle disease;Alexander,1989
4. Newcastle disease and other avian Paramyxoviridae infections;Alexander,1997
5. Identification of paramyxoviruses isolated from birds dying in quarantine in Great Britain;Alexander;Vet. Rec.,1982