1. The effect of neonatal vaccination against Newcastle disease in the presence of maternal antibodies;Allan;Vet. Rec.,1973
2. A simple and rapid microtest procedure for determining Newcastle disease haemagglutination inhibition (HI) antibody titres;Beard,1973
3. Presence of haemagglutinin inhibiting antibodies (HIA) in eggs after the use of Newcastle disease (ND) vaccine prepared in Romania;Bercea;Lucr. Stiint., Inst. Agron. N. Balcescu, Ser. C,1966
4. Transmission of antiviral activity via the egg and role of congenital passive immunity to Newcastle disease in chickens;Brandly;Am. J. Vet. Res.,1946
5. Newcastle disease: a serological study of immunity using two live vaccines;Crowther;J. Comp. Pathol. Ther.,1964