URBAN, R. Recreational and sports activity of prison system employees in Poland in the interwar period. Sport and Tourism Central European Journal, [S. l.], v. 15, n. 4, p. 51–68, 2019. DOI: 10.16926/kf.2016.15.31. Disponível em: https://czasopisma.ujd.edu.pl/index.php/sport/article/view/353. Acesso em: 1 apr. 2023.