1. M. He, Present situation and prospect of rock mechanics in deep mining engineering, In: Proceedings of the 8th Conference of Chinese Rock Mechanics and Engineering (in Chinese), Science Press, Beijing, 2004, 88-94.
2. M. He, Conception system and evaluation indexes for deep engineering (in Chinese), Chin. J. Rock Mech.Eng. 24(16) (2005) 2854-2859.
3. H. Sun, Theory and practice of gob-side entry retaining, China Coal Industry Publishing House, Beijing, 1993.
4. Y.-L. Huang, J.-X. Zhang, Q. Zhang, D.F. Zan, Technology of gob-side entry retaining on its original position in fully-mechanized coalface with solid material backfilling, J. China Coal Soc 36(10) (2004) 146-149.
5. L. Yuan, Key technique to high efficiency and safe mining in highly gassy mining area with complex geologic condition, J. China Coal Soc. 31(2) (2006) 174-178.