Media type: Electronic Journal Title: Jahresbericht : Bergbau-Archiv Bochum Contributor: Bergbau-Archiv Bochum Published: Bochum: Bergbau-Archiv, 2000-2010 Publication information: 2000-2010 [?] Language: German Identifier: Keywords: Bergbau-Archiv Bochum Origination: Footnote: Access State: Open Access