Vyzhva, S., et al. “Petrophysical Features of Maikop Series of the Crimean-Black Sea Region”. Visnyk of Taras Shevchenko National University of Kyiv. Geology, vol. 4, no. 79, Dec. 2017, pp. 12-20, https://doi.org/10.17721/1728-2713.79.02.