CHUDZIAK, Wojciech; MUSIAŁOWSKI, Adam; WEINKAUF, Marcin. A silver deposit from Niedźwiedź – another premise in the study of the origins and function of a stronghold in steklin in Dobrzyń region. Slavia Antiqua. Rocznik poświęcony starożytnościom słowiańskim, [S. l.], n. 64, p. 275–304, 2023. DOI: 10.14746/sa.2023.64.10. Disponível em: https://pressto.amu.edu.pl/index.php/sla/article/view/40357. Acesso em: 17 may. 2024.