@conference {107,
	title = {A Proposal for a Navigation System for Autonomous Wheelchairs},
	booktitle = {Mechatronics \& Robotics 2004 (MECHROB{\textquoteright}04)},
	volume = {2},
	year = {2004},
	month = {09/2004},
	pages = {302 - 307},
	address = {Aachen, Alemania},
	isbn = {3-938153-50-X},
	author = {Garcia, Juan Carlos and Marta Marron and Ure{\~n}a, J.}
}
