1. Bi Hua, 1995, The coal ranks and metamorphic temperatures of the Ceshui and Longtan formations in the Lianyuan geodome, central Hunan Province: Geotectonica et Metallogenia, v. 19, p. 270–273 (in Chinese with English abstract).
2. Bi Hua and Yang Minghui, 1996a, The manifestation of geothermal metamorphism of coal in the Lianyuan coal basin, central Hunan Province: Coal Geology of China, v. 8, p. 26–27 (in Chinese with English abstracs).
3. Bi Hua, Peng Gelin, and Yang Minghui, 1996b, The thermal history and hydrocarbon-generating characteristics of the Ceshui and Longtan coal series in Lianyuan, Hunan Province: Journal of East China Geological Institute, v. 19, p. 157–161 (in Chinese with English abstract).
4. Bi Hua, Peng Gelin, Zhao Zhizhong, and Zhong Jianhua, 1997, Characteristics of dynamometamorphism of the Ceshui Formation coal and its genesis in the Lianyuan coal basin, central Hunan Province: Geology-Geochemistry, n.2, p. 36–40 (in Chinese with English abstract).
5. Liu Huanpin, Zhang Yongling, and Hu Wenqing, 1985, The genesis of antimony deposit in Xikuangshan, Hunan Province: Geology of Hunan, v. 4, p. 28–39 (in Chinese with English abstract).