Books by Eugeniusz J. Sobczyk
Vertical and Decline Shaft Sin
Vertical and Decline Shaft Sinking
Mine Safety and Efficient Expl
Mine Safety and Efficient Exploitation Facing Challenges of the 21St Century
New Techniques and Technologie
New Techniques and Technologies in Thin Coal Seam Exploitation
Deep Mining Challenges
Deep Mining Challenges
International Mining Forum 200
International Mining Forum 2009
Technical, Technological and Economical Aspects of Thin-Seams Coal Mining