1. [1] H. Kazerooni: “Extender: A Case Study for Human-Robot Interaction via Transfer of Power and Information Signals,” Proc. IEEE Int. Workshop on Robot and Human Communication, pp.10–20, 1993.
2. [2] H. Kazerooni, R. Steger and L.H. Huang: “Hybrid Control of the Berkeley Lower Extremity Exoskeleton (BLEEX),” The International Journal of Robotics Research, vol.25, no.5, pp.561–573, 2006.
3. [3] J.L. Pons, R. Ceres and L. Calderon: Wearable Robots: Biomechatronic Exoskeletons, chapter 1. Wiley, 2008.
4. [4] S. Lee and Y. Sankai: “Power Assist Control for Walking Aid with HAL-3 Based on EMG and Impedance Adjustment around Knee Joint,” Proc. IEEE/RSJ Int. Conf. Intelligent Robots and Systems, pp.1499–1504, 2002.
5. [5] M.A. Alexander, M.R. Nelson and A. Shah: “Orthotics, Adapted Seating and Assistive Devices,” Pediatric Rehabilitation, pp.186–187, 1992.