Al-Awad, N.A., Humaidi, A.J. and Al-Araji, A.S. 2023. Fractional multi-loop active disturbance rejection control for a lower knee exoskeleton system. Acta Polytechnica. 63, 3 (Jul. 2023), 158–170. DOI:https://doi.org/10.14311/AP.2023.63.0158.