@ARTICLE {
	AUTHOR = "Luis A. Guerrero and Francisco V{\'a}squez and Sergio Ochoa",
	TITLE ="An Indoor Navigation System for the Visually Impaired",
	JOURNAL = "Sensors",
	VOLUME = "12",
	PAGES = "8236-8258",
	YEAR = "2012",
	PUBLISHER = "Molecular Diversity Preservation International",
	ADDRESS = "Basel, Switzerland",
	ISSN = "1424-8220"
	}