Yljev, L. M., and L. O. Melnikovska. “Energy Saving Potential and Harmful Extrass Amount Declines of the Primary Processing of Oil”. Visnyk of V. N. Karazin Kharkiv National University. Series Еcоlogy0, no. 944 (April 24, 2011): 103-111. Accessed November 21, 2024. https://periodicals.karazin.ua/ecology/article/view/762.