Burgos, Sigfrido, and Sergio A. Burgos. “HPAI H5N1 in Europe 2007: Poultry and Wild Birds”. International Journal of Poultry Science 7, no. 1 (December 15, 2007): 97–100. Accessed September 22, 2025. https://ijpsjournal.org/index.php/ijps/article/view/913.