Porada, Zbigniew, and Ewa Kałamacka. “The Contribution of Baron De Coubertin to the Organization of Olympic Art Competitions”. Sport and Tourism Central European Journal 2, no. 4 (January 8, 2020): 11–27. Accessed February 22, 2024. https://czasopisma.ujd.edu.pl/index.php/sport/article/view/691.