1. Biped locomotion;Vukobratovic,1990
2. The realization of dynamic walking robot WL-10RD;Takanishi,1985
3. The development of Honda humanoid robot;Hirai,1998
4. Proposal of biped walking control based on robust hybrid position/force control;Fujimoto,1996
5. The relationship between smoothness and economy during walking;Hreljac;Biological Cybernetics,1993