1. 7. Android Project, website, http://www.androidworld.com/prod01.htm, 2008.
2. 11. Nava Rodriguez N. E. , Carbone G. and Ceccarelli M. , “Anthropomorphic Design and Operation of a New Low-Cost Humanoid Robot,” International Conference on Biomedical Robotics and Biomechatronics, Pisa, paper F327, (2006).
3. 6. Kim H. and Oh J. , “Torque Feedback Control of the Humanoid Platform KHR-1,” IEEE-RAS International Conference on Humanoid Robots, Karlsruhe/Munich, paper no. 07-kim_jung_hoon-korea, (2003).
4. 8. Carbone G. , Ceccarelli M. , Takanishi A. and Lim H. O. , “A Study of Feasibility for a Low-Cost Humanoid Robot,” IEEE-RAS International Conference on Humanoid Robots, Tokyo, pp. 351–358, (2001).