@misc{Roemer_Ferdinand_(1818-1896)_Tafel,
 author={Roemer, Ferdinand (1818-1896)},
 howpublished={online},
 publisher={(Druck von Robert Nischkowsky)},
 language={ger},
 type={mapa},
 title={Tafel XIII. Friedrichs-Grube ; Bally-Castl-Grube ; Theresia u. Apfel-Grube},
 keywords={Górny Śląsk, geologia, geologia Śląska, mapa geologiczna},
}