Baranowski, Bohdan. “Changes in the Significance of the Cultivation of Buckwheat and Millet in Poland in Modern Times”. Studia Historiae Oeconomicae 9, no. 1 (December 1, 1974): 67–76. Accessed November 5, 2026. https://pressto.amu.edu.pl/index.php/sho/article/view/57866.