Misiewicz, Krzysztof, Miron Bogacki, Wiesław Małkowski, Marcin Wiewióra, and Radosław Cisło. “Results of Non-Invasive Research on the Teutonic Castles in Starogród, Unisław, Zamek Bierzgłowski and Lipienek”. Acta Universitatis Nicolai Copernici Archeologia 36 (December 30, 2021): 95–117. Accessed July 23, 2024. https://apcz.umk.pl/AUNC_ARCH/article/view/36935.