@misc{_Die_1868,
 editor={Gräf, Carl (1822 – c. 1897). Oprac.},
 editor={Geyer, Valentin},
 editor={Luther},
 editor={Kratz, I.},
 editor={Geographisches Institut (Weimar)},
 copyright={Public Domain},
 address={Weimar},
 howpublished={online},
 year={1868},
 publisher={Geographisches Institut},
 language={ger},
 title={Die Schweiz},
 keywords={chorographic maps, political-administrative maps, Switzerland, 19th century},
}