@INPROCEEDINGS {8882,
author={J. Reis and J. Sanguino and A. J. Rodrigues},
doi={},
booktitle={IEEE Position, Location and Navigation Symp. - PLANS},
title={Impact of Satellite Coverage in Single-Frequency Precise Heading Determination},
year={2010},
month={May},
volume={--},
pages={-----} 
}