ZELLMA, A. Rev. Prof. Radosław Chałupniak and His Scholarly Contribution to the Development of Catechetics. Studia Warmińskie, [S. l.], v. 59, p. 149–170, 2022. DOI: 10.31648/sw.7490. Disponível em: https://czasopisma.uwm.edu.pl/index.php/sw/article/view/7490. Acesso em: 11 may. 2024.