SpringerLink (Online service) & Niemann-Delius, C. (2015). Proceedings of the 12th International Symposium Continuous Surface Mining - Aachen 2014. Springer International Publishing : Imprint: Springer.
Chicago-viite (17. p.)SpringerLink (Online service) ja Christian Niemann-Delius. Proceedings of the 12th International Symposium Continuous Surface Mining - Aachen 2014. Cham: Springer International Publishing : Imprint: Springer, 2015.
MLA-viite (8. p.)SpringerLink (Online service) ja Christian Niemann-Delius. Proceedings of the 12th International Symposium Continuous Surface Mining - Aachen 2014. Springer International Publishing : Imprint: Springer, 2015.
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