LEWANDOWSKI, Ignacy. „Sbigneis” by Mikołaj Kotwicz of Żnin: the unfinished epic on primate Zbigniew Oleśnicki . Gniezno European Studies, [S. l.], n. 24, p. 95–113, 2022. DOI: 10.14746/seg.2022.24.6. Disponível em: https://pressto.amu.edu.pl/index.php/seg/article/view/36423. Acesso em: 1 sep. 2024.