Hanna Haponenko, Denys Listratenko, Olena Yevtushenko, and Irina Shamara. “Ecologization of Tourist Activities As a Factor of Sustainable Development of the Regions of Ukraine”. The Journal of V. N. Karazin Kharkiv National University. Series: International Relations. Economics. Country Studies. Tourism, no. 18, Dec. 2023, pp. 52-61, doi:10.26565/2310-9513-2023-18-06.