@conference {,
	title = {Acoustic local positioning systrem using an iOS device},
	booktitle = {4th Internacional Conference on Indoor Positioning and Indoor Navigation (IPIN 2013)},
	volume = {1},
	year = {2013},
	month = {10/2013},
	pages = {1-4},
	publisher = {IEEE},
	organization = {IEEE},
	chapter = {1},
	address = {Montbeliard -  Belfort,  (Francia)},
	isbn = {978-1-4673-1954-6)},
	author = {A. Hren{\'a}ndez and T. Aguilera and J. A. Paredes and F. J. {\'A}lvarez and J. I. Suarez}
}
