@article {,
	title = {Multiband Waveform Design for an Ultrasonic Indoor Positioning System.},
	journal = {IEEE Sensors  Journal},
	volume = {15},
	year = {2015},
	month = {12/2015},
	pages = {7190-7199},
	issn = {1530-437X},
	doi = {10.1109/JSEN.2015.2472978},
	author = {A. Lindo and E. Garcia and Ure{\~n}a, J. and Mar{\'\i}a del Carmen P{\'e}rez}
}
