Gyüre, Péter, Géza Nagy, and Sándor Mihók. “The Role of Grasslands in the Diet of Geese”. Acta Agraria Debreceniensis, no. 10 (May 11, 2003): 19–21. Accessed November 29, 2022. https://ojs.lib.unideb.hu/actaagrar/article/view/3455.