1. F. R. Mao, L. Wang: Astronautic Metrology and Measurement (2005), 25 (2): 1-6"In Chinese.
2. Q. Li, Y. Z. Qin, H. Y. Li: Coal project (2006), 4: 97-99 In Chinese.
3. C. Wang, Y. Xue: Shanxi Architecture (2007), 33 (22): 28-29 In Chinese.
4. C. Y. Zang: Architectural Journal (2006), (12): 54-56 In Chinese.
5. Y. J. Sun, N. Ding, Q. Wang: Shandong Jianzhu University (2009), 24 (4): 377-380"In Chinese.