LYTVYN, Stepan, Olena ZINCHENKO, Olha BASARAB, Valentyna GONCHARUK, Uliana ANDRUSIV, & Iryna RYZHUK. " Legal Regulation of the Agreement on Provision of Tourist Services during the Pandemic Covid-19." Journal of Environmental Management and Tourism [Online], 12.2 (2021): 501-506. Web. 20 Apr. 2024