@misc{Güldenstädt_Johann_Anton_(1745–1781)_Karte_1787,
 author={Güldenstädt, Johann Anton (1745–1781) and Schraembl, Franz Anton (1751–1803). Oprac. and Wussin Joseph. Rys.},
 copyright={Public Domain},
 address={Wien},
 howpublished={online},
 year={1787},
 publisher={in eigenen Verlage},
 language={ger},
 title={Karte von dem Caspischen Meer},
 keywords={chorographic maps, Caspian Sea region, 18th century},
}