@ARTICLE {27981,
author={A. Boaventura and D.  Belo and R. D. Fernandes and A.C.  Collado and A. G. Georgiadis and N.B.C. Carvalho},
doi={10.1109/MMM.2014.2388332},
journal={IEEE Microwave Magazine},
title={ Boosting the Efficiency: Unconventional Waveform Design for Efficient Wireless Power Transfer },
year={2015},
month={March},
volume={16},
number={3},
pages={87-96},
ISSN={1527-3342}
}