@misc{_Plan_1870,
 copyright={Public Domain},
 address={[Wien]},
 howpublished={online},
 year={1870},
 publisher={Verlag von Rudolf Lechner k. k. Universitäts - Buchhandlung},
 language={ger},
 title={Plan von Paris und Umgebung : Massstab 1:49240},
 type={Image},
 keywords={street maps, Paris street maps, topographical maps, Paris, Ile-de-France, 19th century},
}