@INPROCEEDINGS {12341,
author={T. Varum and J. M.  Matos and P. Pinho and A. Oliveira},
doi={},
booktitle={IEEE Conf. on Intelligent Transportation Systems},
title={Printed Antenna for DSRC Systems with Omnidirectional  Circular Polarization},
year={2012},
month={September},
volume={1},
pages={1-4} 
}