- Performance evaluation of PD monitoring technique integrated into medium voltage cable network for smart condition assessmentShafiq, Muhammad; Lehtonen, Matti; Hussain, Ghulam A.; Kütt, LauriPQ2014 : the 9th International 2014 Electric Power Quality and Supply Reliability Conference (PQ) : June 11-13, 2014, Rakvere, Estonia : proceedings2014 / p. 351-357 : ill