Stanchev, P., and M. Mehmed-Hamza. “Investigation of the Effects of the Arc Fault Resistance and Transient Resistance on the Overcurrent Ground Relay Protection Setting in Medium Voltage Electrical Power Lines”. ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA, Vol. 4, no. 1, June 2020, pp. 67-72, doi:10.29114/ajtuv.vol4.iss1.172. Accessed 27 Mar. 2023.