1. Wirk-, Blind-, Scheinleistung in Elektrischen Stromkreisen mit nichtsinusförmigem Verlauf von Strom und Spannung;Fryze;ETZ-A Elektrotech. Z.,1932
2. Suggested definition of reactive power for nonsinusoidal systems;Shepherd;Proc. Inst. Electr. Eng.,1972
3. On the Definition of Reactive Power under Non-Sinusoidal Condition;Kuster;IEEE Trans, on Power Appar. a. Syst.,1980
4. Reactive Power in Non-Sinusoidal Situations;Page;IEEE Trans, on Instrumental a. Meas.,1990
5. Orthogonal Decomposition of the Currents in a 3-Phase Nonlinear Asymmetrical Circuit with a Nonsinusoidal Voltage Source;Czarnecki;IEEE Trans, on Instrumental. a. Meas.,1988