1. D. Su, W. Peng, Study on easy-to-manufactured involute worm and helical gear drive with high carrying capacity and high precision, in: The Proceedings of 2005 Annual Conference of China Association for Science and Technology, pp. 39–46
2. Generalized concept of meshing and contact of involute crossed helical gear and its application;Litvin;Comput. Meth. Appl. Mech. Eng.,2005
3. H. Li, X. Dong, Computer-aided analysis for theoretical error of the sing-frank mesh measuring instrument with master worm, in: The Proceedings of 5th Annual Conference of Machanical Transmission, Shanghai, pp. 510–517
4. Computer aided analysis for contact pattern of crossed helical involute gears;Zhao;Chin. J. Mech. Eng.,2004
5. X. Dong, H. Li, W. Wei, 2DOF theory of gearing and application, China Machine Press, Beijing, 1 edition, pp. 69–110