Хроль, В. В. “The Methods to Identify Compacted Saturated Hydrocarbon Rocks (on the Example of Southern Dnieper-Donets Basin Margin”. Visnyk of V. N. Karazin Kharkiv National University. Series Geology. Geography. Ecology, no. 46, Nov. 2017, pp. 62-67, https://periodicals.karazin.ua/geoeco/article/view/9515.