Melnyk, Anatolij, and Maria Lavruk. “Landscape Educational Trail to the Highest Peak of Ukraine Mount Hoverla (Ukrainian Carpathian Mountains)”. Journal of Education, Health and Sport 7, no. 8 (August 31, 2017): 1477–1493. Accessed July 8, 2024. https://apcz.umk.pl/JEHS/article/view/5063.