Vetitnev, Alexandr, Nadezhda Bobina, and Olga Zelenskaya. “Analysis of tourists’ Expenditures at the 2014 Sochi Olympic Games”. International Review of Management and Marketing 6, no. 2 (April 17, 2016): 227–232. Accessed February 7, 2026. https://econjournals.com/index.php/irmm/article/view/1976.