Almási, Anita, Ákos Varga, Judit Barna, Ferenc Bogenfürst, and Marcell Molnár. 2002. “Preliminary Study on Spermatological Characteristics of Frizzled Hungarian Ganders”. Acta Agraria Kaposváriensis 6 (2): 289-92. https://journal.uni-mate.hu/index.php/aak/article/view/1702.