ŁUCZAK, Maciej; NOWAK, Leonard. Professor Jerzy Gaj (1929–2016). Outstanding historian of physical culture. Sport and Tourism Central European Journal, [S. l.], v. 16, n. 2, p. 11–26, 2019. DOI: 10.16926/kf.2017.16.12. Disponível em: https://czasopisma.ujd.edu.pl/index.php/sport/article/view/328. Acesso em: 20 apr. 2024.