1) Kazerooni, H. et al.: Hybrid Control of the Berkeley Lower Extremity Exoskeleton, International Journal of Robotics Research, Vol. 25, No. 5, p. 561-573 (2006)
2) Nickel, V. L. et al.: Development of Useful Function in the Severely Paralyzed Hand, Journal of Bone and Joint Surgery, Vol. 45A, No. 5, p. 933-952 (1963)
3) Baldwin, H. A.: Muscle-Like Contractive Device, Bionics Symposium, Aeronautical System Div/Aerospace Medical Division Wright-Patterson AFB, p. 19-21 March (1963).
4) Saga, N. et al.: Development of Artificial Muscle Actuator Reinforced by Kevlar Fiber, Proceedings of IEEE ICIT2002, p. 950-954 (2002)
5) Nakamura, T. et al.: Development of a Pneumatic Artificial Muscle based on Biomechanical Characteristics, Proceedings of IEEE, ICIT2003, p. 729-734 (2003)