MICHALCZYK, Wacław Marian. Aleksander Kowalski (1950-2022). Studia Franciszkańskie, [S. l.], v. 33, p. 427–430, 2024. Disponível em: https://stud-fran.franciszkanie.net/index.php/Studia-Franciszkanskie/article/view/212. Acesso em: 29 kwi. 2025.