Jászberényi, István, jakab Loch, Wulf Bartolomaeus, and Detloff Köppen. “Measuring of Nitrogen Leaching Using Ceramic Suction Cups at Different Locations”. Acta Agraria Debreceniensis, no. 1 (December 4, 2001): 10–17. Accessed October 2, 2022. https://ojs.lib.unideb.hu/actaagrar/article/view/3601.