Određivanje imunogenosti i tropizma virusa Newcastelske bolesti soj ZG1999HDS primijenjenog okulonazalno ili postupkom nebulizacije u jednodnevnih pilića : doktorski rad = Determination of immunogenicity and tropism of Newcastle disease virus strain ZG1999HDS applied oculonasally or by means of nebulisation in day-old chicks : doctoral thesis - Cvetić, Željko; Gottstein, Željko (2016)