Stibilj, V, Dušan Terčič, and Antonija Holcman. “Content of Some Mineral Elements in Eggs from Farms and Free Range”. Acta Agraria Kaposváriensis 6, no. 2 (February 15, 2002): 139–145. Accessed April 13, 2025. https://journal.uni-mate.hu/index.php/aak/article/view/1657.