1. Low radiation efficient wireless energy transfer in wireless distributed systems;Nikoletseas,2015
2. Wireless power transfer via strongly coupled magnetic resonances;Kurs;Science,2007
3. Intel, Wireless resonant energy link (wrel) demo, http://software.intel.com/en-us/videos/wireless-resonant-energy-link-wrel-demo/.
4. Powercast Corporation, http://www.powercastco.com/.
5. Murata Manufacturing, http://www.murata.com/.