Rodonaia, Elizbar, Lucie Severova, Alexandr Soukup, and Roman Svoboda. “EXTERNAL ECONOMIES OF SCALE OF COMPANIES DOING BUSINESS IN CONGRESS AND BUSINESS TOURISM IN THE CZECH REPUBLIC”. European Scientific Journal, ESJ 9, no. 10 (January 14, 2014). Accessed April 19, 2025. https://test.eujournal.org/index.php/esj/article/view/2279.