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A new coal pillars design method in order to enhance safety of the retreat mining in room and pillar mines

✍ Scribed by E. Ghasemi; K. Shahriar

Book ID: 113915953
Publisher: Elsevier Science
Year: 2012
Tongue: English
Weight: 585 KB
Volume: 50
Category: Article
ISSN: 0925-7535
DOI: 10.1016/j.ssci.2011.11.005

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