1. State-of-the-art of ground control in longwall mining and mining subsidence
Author: / Editors roginder P. Chugh, Michael Karmis
Library: Library of Campus2 Colleges of Engineering of Tehran University (Tehran)
Subject: Longwall mining,Mine subsidences,Coal mines and mining
Classification :
TN
292
.
S7
2. State-of-the-art of ground control in longwall mining and mining subsidence
Author: / Editors roginder P. Chugh, Michael Karmis
Library: Tehran University, technical faculty libraries 1 (Tehran)
Subject: Longwall mining,Mine subsidences,Coal mines and mining
Classification :
TN
292
.
S7
