Contemporary and future aspects of cost effective power quality monitoring - position paper of CIGRE WG C4.112Meyer, Jan; Kilter, JakoPQ2012 : 8th International Conference : 2012 Electric Power Quality and Supply Reliability : June 11-13, 2012, Tartu, Estonia : conference proceedings2012 / p. 83-88 : ill https://ieeexplore.ieee.org/abstract/document/6256208/similar#similar