7Beijing Mining Graduate School of China Coal Research Institute(煤炭科学研究院北京开采研究所)．The law of subsidence and overburden breakage in coalmine and application(煤矿地表移动与覆岩破坏规律及其应用)[M]．Bering：China Coal Industry Publishing House，1981：37-42．
8XIAO Liming (肖黎明). Mining coal under water (水体下采煤)[M]. Beijing: China Coal Industry Publishing House, 1975: 16-135.
