1. JIN Zhongming, XU Linsheng. Control of hard roof in mining[M]. Beijing, China Coal Industry Publishing House, 1994.(in Chinese)
2. ZHU Deren, QIAN Minggao, XU Linsheng . Discussion on control hard roof[J]. Journal of China Coal Society, 1991, 16(2), 11-18.(in Chinese)
3. SONG Yongjin. Controlling methods and engineering effects of strong roof in Datong mining area[J]. Coal Science and Technology, 1991, (12), 18-22.(in Chinese)
4. NIU Xizhuo. The control of hard and difficult to cave roof in coal mine[J]. Chinese Journal of Rock Mechanics and Engineering, 1988, 7(2), 137-146.(in Chinese)
5. QIAN Minggao, LIU Tingcheng. Mine pressure and controlling[M]. Beijing, China Coal Industry Publishing House, 1991, 86-88.(in Chinese)