Fehér, István, and István Kiss. “Main Characteristics of Trade of the Hungarian Cereals and Oil Crops Between 2000 and 2010 and the Effects of Changes in Intervention Rules to the Hungarian Cop Sector from 2004 to 2010”. Applied Studies in Agribusiness and Commerce 7, no. 4-5 (December 30, 2013): 47–54. Accessed March 1, 2021. https://ojs.lib.unideb.hu/apstract/article/view/6200.