@Misc{130256900,
author="{Bergbau-Archiv Bochum}",
title="Schriften des Bergbau-Archivs",
year="1977",
publisher="Dt. Bergbau-Museum",
address="Bochum",
note="Nr. 1.1977 -",
note="Ersch. unregelm{\"a}{\ss}ig",
language="German"
}