1. U.S. Longwall Operations: How Slow Can We Go Anticipating a recovery in 2017, longwall mines sit in a holding pattern. Coal Age 27(1), 26–32 (2017)
2. Joy Global Inc.: Joy advanced shearer automation. Coal Int. 261(1), 61–64 (2013)
3. Wang, J., Huang, Z.: The recent technological development of intelligent mining in China. Engineering 3(4), 24–35 (2017)
4. Wang, J., Huang, L., Li, S., et al.: Development of intelligent technology and equipment in fully-mechanized coal mining face. J. China Coal Soc. 39(8), 1418–1423 (2014)
5. Li, W., Luo, M., Yang, H., et al.: Memory cutting of adjacent coal seams based on a hidden Markov model. Arab. J. Geosci. 7, 10 (2013)