@misc{_Der_1941,
 copyright={Public Domain},
 address={Berlin},
 howpublished={online},
 year={1941},
 publisher={Reichsamt für Landesaufnahme},
 language={ger},
 title={Der Kanal 1:250 000. Blatt Nr. 6, Zusammendruck Brüssel - Paris},
 type={Image},
 URL={http://www.rcin.org.pl/igipz/Content/214130/PDF/WA51_208570_PANC780-6-r1941_Der-Kanal-1-250-000.pdf},
 keywords={topographic maps, The English Channel coast (France), Île-de-France (France ; region), Brussels (Belgium ; region)},
}