Exploring the Deutsche Digitale Bibliothek
Phrase your search query more precisely. You can specify whether one of the search terms, an exact phrase or all search terms should appear in the results. You can also choose in which fields you want to search. Help
The Deutsche Bergbau-Museum Bochum – founded in 1930 – is one of eight research museums of the Leibniz Association. The history of the extraction, processing and use of geographic...