“The Origin and Activities of the Marshal Józef Piłsudski Association for Social and Educational Work in Częstochowa in the Years 1927–1939 ”. Sport and Tourism Central European Journal 8, no. 4 (December 22, 2025): 67–85. Accessed March 13, 2026. https://czasopisma.ujd.edu.pl/index.php/sport/article/view/2943.