@book{ 0-1143720938, title = {Dichtebestimmungen an Gesteinen des Osterzgebirges}, series = {Freiberger Forschungshefte / C}, author = {Kopf, Manfred and Oelsner, Christian}, address = {Leipzig}, publisher = {Dt. Verl. für Grundstoffindustrie}, year = {1963}, language = {German}, url = {https://katalog.ub.tu-freiberg.de/Record/0-1143720938} }