KUBIAK-WÓJCICKA, Katarzyna, BRÓZDA, Sławomir and SZNAJDER, Agnieszka. Hydrographic changes in a river system and their influence on the legal classification of watercourses, exemplified by selected tributaries of the San river. Bulletin of Geography. Physical Geography Series. Online. 23 January 2017. No. 12, pp. 5-17. [Accessed 3 July 2024]. DOI 10.1515/bgeo-2017-0001.