Geograficheskii atlas Rossiiskoi Imperii Tsarstva Pol’skago i Velikago Kniazhestva Finliandskago: raspolozhennyi po guberniiam na 80 listakh... (Vasilij Petrovich Piadyshev, 1827)
Kelly O'Neill, “Rivers of the Empire, comprehensive,” The Imperiia Project: Map Gallery Site, accessed October 26, 2026, https://imperiia.omeka.fas.harvard.edu/document/35.
