@conference {Bohonos07,
	title = {Universal real-time navigational assistance (URNA): An urban bluetooth beacon for the blind},
	booktitle = {Proceedings of the 1st ACM SIGMOBILE International Workshop on Systems and Networking Support for Healthcare and Assisted Living Environments (HealthNet {\textquoteright}07)},
	year = {2007},
	pages = {83{\textendash}88},
	url = {http://users.soe.ucsc.edu/~manduchi/Papers/health02f-bohonos.pdf},
	author = {Bohonos,S. and Lee, A. and Malik, A. and Thai, C. and Roberto Manduchi}
}
