Stanchev, P. “Investigation of the Overvoltages in Electrical Power Lines With a Grounded through a Resistance Neutral”. ANNUAL JOURNAL OF TECHNICAL UNIVERSITY OF VARNA, BULGARIA, Vol. 4, no. 1, June 2020, pp. 73-78, doi:10.29114/ajtuv.vol4.iss1.174. Accessed 20 Aug. 2025.