Volkov Сергей Константинович. “Studying the Possibilities for Tourism Development in Russia in COVID-19 Pandemic: A Sociological Research”. Services in Russia and Abroad 15, no. 4/96 (October 13, 2021): 81–89. Accessed May 17, 2024. https://ruservices.rgutspubl.org/index.php/1/article/view/88.