MUSZYŃSKA, Jadwiga. Zenon Guldon (24 XI 1936–25 VII 2012). Kwartalnik Historyczny, [S. l.], v. 120, n. 1, p. 205–209, 2013. DOI: 10.12775/14527. Disponível em: https://apcz.umk.pl/KH/article/view/14527. Acesso em: 8 lip. 2025.