4Hurwitz J,Wing-Hung K. Technologies for Smart Grid and SmartMeter [C]. 2011 IEEE International Solid-state Circuits Conference(ISSCC), 2011: 533 - 536.
5Derbel F. Trends in Smart Mtering Systems Signals and Devices[C]. 6th International Multi Conference on SSD, 2009 : 1 -4.