Кулик, М.І., Лісняк, А.А. and Торма, Т. 2017. Determination of Soil Pollution by Heavy Metals, Introduced by Waste Motor Oils. Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy. 15 (Jan. 2017), 122-127. DOI:https://doi.org/10.26565/1992-4259-2016-15-16.