@misc{Sokołowski_Carl_Karte_1856,
 author={Sokołowski, Carl},
 copyright={Public Domain},
 address={Krakau},
 howpublished={online},
 year={1856},
 publisher={[s.n.]},
 language={ger},
 title={Karte des Krakauer Verwatlungsgebietes},
 keywords={political-administrative maps, Cracow region, 19th century},
}