Dvořák, Petr, and Jaroslav Tomášek. “Findings on the Cultivation of Potatoes in Organic Farming”. Acta Agraria Debreceniensis, no. 44 (November 20, 2011): 113–116. Accessed July 18, 2024. https://ojs.lib.unideb.hu/actaagrar/article/view/2618.