1. Machines that Walk: The Adaptive Suspension Vehicle;Song,1989
2. Passive dynamic walking;McGeer;Internat. J. Robotics Res.,1990
3. A.C. Smith, M.D. Berkemeier, Passive dynamic quadrupedal walking, in: Proceedings IEEE International Conference on Robotics and Automation (ICRA ’97), Albuquerque, New Mexico, USA, 1997, pp. 34–39.
4. A study of fuzzy-neural force control for a quadrupedal walking machine;Tsai;J. Dynam. Systems Measurement Control,1998
5. M.C. Birch, et al., Design of a cricket microrobot, in: Proceedings IEEE International Conference on Robotics and Automation (ICRA ’00), USA, 2000, pp. 1109–1114.