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(2014). "Conveyor Technology Guide". Bulk Solids Handling 34: 32. Clausthal-Zellerfeld: WoMa Media Dröttboom & Geisler GbR. ISSN 01739980. Retrieved on 2106-04-04. |
This file has been used in:
Braun Kohle (in en). theshadowofthefuture.wordpress.com / The Shadow of the Future (2016-04-25). Retrieved on 2016-07-22. |