@misc{_Geologische_1918,
 copyright={Copyright by Uniwersytet Wrocławski},
 copyright={University of Wroclaw},
 howpublished={online},
 year={1918},
 publisher={Topogr. Aufnahme des Kgl. Preuss. Generalstabes},
 title={Geologische Karte 1:25 000 - 2885 Schönau},
 keywords={mapa geologiczna},
}