LABAK-MECHOWSKA, Ewa Agnieszka and DĄBROWSKI, Michał. The role of geological conditions in the disintegration of historical structures on the escarpment of the Lower Vistula Valley, on the example of Chełmno (Poland). Bulletin of Geography. Physical Geography Series. Online. 31 May 2017. No. 12, pp. 83-91. [Accessed 23 July 2024]. DOI 10.1515/bgeo-2017-0007.