@INPROCEEDINGS {11241,
author={T. Abrudan and L. M. Paula and J. Barros and J. P. C. Silva Cunha and N.B.C. Carvalho},
doi={},
booktitle={IEEE International Conf. on Indoor Positioning and Indoor Navigation - IPIN 2011},
title={Indoor location estimation and tracking in wireless sensor networks using a dual frequency approach},
year={2011},
month={September},
volume={-},
pages={---} 
}
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