Volkova, Irina, and Yulia Los. “Development of Sanatorium Activity in Carpathian Region”. The Journal of V. N. Karazin Kharkiv National University. Series: International Relations. Economics. Country Studies. Tourism0, no. 6 (1): 143-152. Accessed April 27, 2024. https://periodicals.karazin.ua/irtb/article/view/10019.