@ARTICLE {5504,
author={J. Sanguino and F. Tocha and A. J. Rodrigues},
doi={10.1007/s11277-010-0124-3},
journal={Wireless Personal Communications},
title={WAW Location-based Service Positioning},
year={2011},
month={June},
volume={58},
number={3},
pages={599-612},
ISSN={1572-834X}
}