1. H. S. Jrgensen, H. Nakayama, H. Raaschou, and T. Olsen, “Recovery of walking function in stroke patients: the copenhagen stroke study,” Archives of Physical Medicine and Rehabilitation, vol. 76, no. 1, pp. 27–32, January 1995.
2. Z. Shen, Y. Zhuang, and J. Zhou, “Design and test of admittance control with inner adaptive robust position control for a lower limb rehabilitation robot,” International Journal of Control, Automation and Systems, vol. 18, no. 1, pp. 134–142, August 2019.
3. Z. Yang, S. Guo, and Y. Liu, “Lyapunov based robust control for tracking control of lower limb rehabilitation robot with uncertainty,” International Journal of Control, Automation and Systems, vol. 18, no. 1, pp. 76–84, November 2019.
4. Y. Ren, Y. Wu, C. Yang, T. Xu, R. L. Harvey, and L. Zhang, “Developing a wearable ankle rehabilitation robotic device for in-bed acute stroke rehabilitation,” IEEE Trans. on Neural Systems and Rehabilitation Engineering, vol. 25, no. 6, pp. 589–596, June 2017.
5. X. Zhu and J. Wang, “Double iterative compensation learning control for active training of Upper limb rehabilitation robot,” International Journal of Control, Automation and Systems, vol. 2, no. 16, pp. 196–205, April 2018.