@INPROCEEDINGS {8513,
author={F. Nunes and F. Sousa and N. Delgado},
doi={},
booktitle={Institute of Navigation GPS/GNSS Conf.},
title={A VDLL Approach to GNSS Cell Positioning for Indoor Scenarios},
year={2009},
month={September},
volume={1},
pages={1690-1699} 
}