ZHELEZNIAK, Mykola, et al. “UKRAINIAN ENCYCLOPEDIAS AND DICTIONARIES IN VIEW OF SPREADING GEOLOGICAL KNOWLEDGE”. Visnyk of Taras Shevchenko National University of Kyiv. Geology, vol. 4, no. 103, Jan. 2025, pp. 19-25, https://doi.org/10.17721/1728-2713.103.03.