@misc{_Plan_[post,
 copyright={Public Domain},
 address={[S.l.]},
 howpublished={online},
 year={[post 1734]},
 publisher={[s.n.]},
 language={ger},
 title={Plan von der Belagerung der Stadt Dantzig und Weichsel Münde},
 type={Image},
 keywords={topographical maps, Gdańsk, Gdańsk siege (1734), 18th century, manuscript maps},
}