@misc{_Carte_1919,
 editor={Francja. Service géographique de l'armée},
 copyright={Public Domain},
 address={[Paris]},
 howpublished={online},
 year={1919},
 publisher={S.G.A.},
 language={fre},
 language={ger},
 title={Carte No. 4. : Dantzig},
 keywords={topographical maps, Gdańsk region},
}