Fachartikel - Downloads
Quellen
- World of Mining – Surface & Underground 64, 2012, No. 2, GDMB Verlag GmbH, Paul-Ernst-Straße 10, 38678 Clausthal-Zellerfeld
- World of Mining – Surface & Underground 66, 2014, No. 6, GDMB Verlag GmbH, Paul-Ernst-Straße 10, 38678 Clausthal-Zellerfeld