Csizmazia, Zoltán, Ilona Nagy Polyák, and Attila Kőkuti. “Basic Research for the Development of Fertiliser Spreaders”. Acta Agraria Debreceniensis, no. 24 (October 11, 2006): 52–57. Accessed November 28, 2021. https://ojs.lib.unideb.hu/actaagrar/article/view/3225.