GUTTMEJER , K. O Lechu Krzyżanowskim . Artifex Novus, [S. l.], n. 5, p. 226–230, 2021. DOI: 10.21697/an.9382. Disponível em: https://czasopisma.uksw.edu.pl/index.php/an/article/view/9382. Acesso em: 15 kwi. 2025.