LYTVYNYUK, Stanislav, et al. “BASIC CLASSIFICATION SYSTEMS FEATURES AS A TOOL FOR MANAGEMENT AND INVESTMENT ANALYSIS OF SUBSOIL USE PROJECTS”. Visnyk of Taras Shevchenko National University of Kyiv. Geology, vol. 3, no. 102, Jan. 2025, pp. 60-68, https://doi.org/10.17721/1728-2713.102.08.