@INPROCEEDINGS {34508,
author={S.I. Lopes and D.F.A. Albuquerque and J. Vieira and C.A.C.B. Bastos},
doi={},
booktitle={International Conference on Indoor Positioning and Indoor Navigation – IPIN},
title={Indoor Ultrasonic Simulator for Moving Objects Using Delay Filters},
year={2011},
month={September},
volume={},
pages={-} 
}
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