@INPROCEEDINGS {15059,
author={J. Dias and J. M.  Matos and A. Oliveira},
booktitle={Conf. on Electronics, Telecommunications and Computers - CETC},
title={THE CHARGE COLLECTOR SYSTEM - A New NFC and Smartphone-based Toll Collection System},
year={2013},
month={December},
volume={1},
pages={1-1} 
}