Іщенко, Л. В. “Regularities of Bitumen Hydrothermal Associations in Geological Structures of West Donetsk Graben”. Visnyk of V. N. Karazin Kharkiv National University. Series Geology. Geography. Ecology0, no. 45 (March 14, 2017): 38-42. Accessed December 14, 2025. https://periodicals.karazin.ua/geoeco/article/view/8179.