F. Jani, T. M. A. I. Tuan Asmadi, M. H. Mohd Ramli, and W. S. Wan Mohamad, “Actuator-level kinematic analysis of a PAM-driven dual four-bar knee exoskeleton for rehabilitation gait assistance”, JAEDS, vol. 6, no. 2, pp. 27-47, Sep. 2026.