Sobczyk, Eugeniusz J.

Deep mining challenges Eugeniusz J. Sobczyk, Jerzy Kicki, Piotr Saluga 2009 Mine safety and efficient exploitation facing challenges of the 21st century Liu Zegong, Jerzy Kicki, Hua Xinzhu, Yuan Shujie, Dai Guanglong, Eugeniusz J. Sobczyk 2010 Vertical and decline shaft sinking - good practices in technique and technology: International Mining Forum 2015: 23-27 February 2015, Cracow, Poland International Mining Forum 2015 2015