SEROHINA, Nataliia, 		PIKHURETS, Olena, 		SUKHATSKYI, Roman, 		YEVLAKHOVA, Elvira, 		LYTVYN, Stepan, AND 		MIROSHNYKOV, Ivan.
" On the Problems of Amending the Terms of the Contract on the Provision of Tourism Services during the COVID-19 Pandemic" <em>Journal of Environmental Management and Tourism</em> [Online], Volume 12 Number 1 (22 February 2021)