• Critical PQ phenomena and sources of PQ disturbances in PE rich power systems : Deliverable 5.1 [Online resource]Kilter, Jako; Löper, Mari; Kangro, Triin; Palu, Ivo2016 https://www.h2020-migrate.eu/_Resources/Persistent/f337837c7a68765f3d38a310427e67d1c0f44cce/MIGRATE_D5-1_V1_TUT.pdf