Kováč, Ladislav, Dana Kotorová, Jana Jakubová, and Pavol Balla. “The Profitability of Millet Cultivation on Heavy Soils”. COLUMELLA – Journal of Agricultural and Environmental Sciences 4, no. 2 (December 5, 2017): 63–68. Accessed April 26, 2025. https://journal.uni-mate.hu/index.php/columella/article/view/2750.