Hamidi, Afrim, Dorte Luschow, David George, Kurtesh Sherifi, Olivier Sparagano, Hafez Mohamed Hafez, and Driton Sylejmani. 2020. “Fowlpox Virus Outbreaks in Kosovan Layer Flocks: An Evidence of Vaccination Failure”. VETERINARIA 65 (2). Sarajevo, Bosnia and Herzegovina:55-57. https://veterinaria.unsa.ba/journal/index.php/vfs/article/view/237.