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– The study documents usefulness of archival cartographic materials for the classification of lakes in accordance with the Polish law. The differences in the hydrological and normative classifications of lakes are, therefore, discussed. Moreover, special attention was drawn to diverse presentation of the elements of the hydrographic network in the individual maps. Despite the established high usefulness of maps for the classification of lakes, field observations are recommended to verify the conclusions formed on the grounds of desk studies.

The Usefulness of Archival Cartographic Materials in the Legal Classification of Lakes in Poland.