@misc{ 0-1373652306, title = {Geologische Specialkarte von Preussen und den Thüringischen Staaten}, author = {Schmid, E. E.}, address = {Berlin}, publisher = {Kraatz}, year = {1871}, language = {Undetermined}, url = {https://katalog.ub.tu-freiberg.de/Record/0-1373652306} }