@INPROCEEDINGS {11308,
author={T.B. Barroso and J. Sanguino and A. J. Rodrigues},
doi={},
booktitle={URSI Seminar of the Portuguese Committee},
title={Coordinated Positioning System Based on GPS for Assistance of Civil Protection Operations},
year={2011},
month={November},
volume={--},
pages={-----} 
}