@misc{Weiland_C._F._Europa,
 author={Weiland, C. F. and Kiepert, H.},
 howpublished={online},
 publisher={Verlag des geogr. Instituts},
 language={ger},
 title={Europa [mapa]},
 type={mapa},
 keywords={Europa - 19 w. - mapa, kartografia},
}