Shah, M. S., T. Mahmood, M. F. Ullah, M. Q. Manan, and A. U. Rehman. “Power Quality Improvement Using Dynamic Voltage Restorer With Real Twisting Sliding Mode Control”. Engineering, Technology & Applied Science Research, vol. 12, no. 2, Apr. 2022, pp. 8300-5, doi:10.48084/etasr.4734.