Goujgoulova G, Stoimenov G. Avian Avulavirus 1 Outbreaks in Bulgaria During 2016 and 2017. Tradit. Mod. Vet. Med. [Internet]. 2022 Nov. 26 [cited 2026 Nov. 15];7(2):36-43. Available from: https://scij-tmvm.com/index.php/pub/article/view/210