@misc{_Süd-Russland_[post,
 copyright={Public Domain},
 address={Wien},
 howpublished={online},
 year={[post 1870]},
 publisher={Verlag J. Schlacher},
 language={ger},
 title={Süd-Russland und Kaukasien},
 keywords={chorographic maps, Southern Russia, Caucasus, Black Sea region, 19th century},
}