OLIYNYK, Yaroslav. “GEOGRAPHY: DEVELOPMENT TRENDS: Proceedings of the 12th Congress of the Ukrainian Geographical Society”. Ekonomichna ta Sotsialna Geografiya 75 (June 30, 2016): 3–6. Accessed July 15, 2026. https://www.bulletin-esgeograph.org.ua/esg/article/view/75-oliynyk-3-6.