1. Yongmin Zhong, Weiyin Ma, in: An Approach for Solid Modelling in a Virtual Reality Environment, edited by S.K. Ong and A.Y.C. Nee, Virtual and Augmented Reality Applications in Manufacturing (Springer Publications, Singapore 2003).
2. Xia Zhao, in: Virtual Reality Technology Application and Development Trend. CD Technology. Vol. 11(2009), pp.10-12.
3. Peike Shi, Ming Gao and Gang Huang, in: A Virtual Training System of Concrete Pump Track. Information and Intelligentization. Vol. 41(2010), pp.2-4.
4. Liang Ju, Mansi Li and Yong Xie, in: Equipment Virtual Training System Based on Vega and GL Studio. Information Technology. Vol. 6(2010), pp.113-116.
5. Suyuan Wei, Chao Ning, Shiying Zhang and Qing Ni, in: The Aerospace Simulation Training System Based on VRML. Aerospace Shanghai. Vol. 1(2003). pp.31-34.