@misc{Willer_Peter_(_-1700)._Autor_(kartografia)_Dantzig,
 author={Willer, Peter ( -1700). Autor (kartografia)},
 howpublished={online},
 publisher={Janssonius v. Waesberge},
 language={ger},
 title={Dantzig in Plano Anno 1687},
 type={mapa},
 keywords={Widoki, Gdańsk (Polska) -- 17 w},
}