Bíró, Oszkár, László Ózsvári, and Zoltán Lakner. 2006. “The Veterinary Medicine in Upgrading of Competitiveness of Hungarian Pig-Production Sector”. Acta Agraria Kaposváriensis 10 (2): 83-89. https://journal.uni-mate.hu/index.php/aak/article/view/1780.