Vilček, J., and LisnyakА. А. “Ecological Features Of The Potential Of Soils For Minimalizing And Soil-Conservation Tillage In Slovakia”. Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy, no. 1054, Feb. 2014, pp. 103-10, https://periodicals.karazin.ua/ecology/article/view/811.