@misc{_Ober, howpublished={online}, publisher={Verlag der Simon Schropp'schen Hof -Landkarten Handlung}, publisher={(Lith. Anst. v. Leopold Kraatz)}, language={ger}, type={mapa}, title={Ober Schlesien. Scharley}, keywords={mapa topograficzna, Piekary Śląskie, Wielkie Piekary}, }