@book{ 0-1092130942, title = {Großdeutschlands Steinkohlenlager: mit 36 Textabbildungen und 1 Tafel}, series = {Deutscher Boden}, author = {Stach, Erich}, address = {Berlin}, publisher = {Borntraeger}, year = {1940}, language = {German}, url = {https://katalog.ub.tu-freiberg.de/Record/0-1092130942} }