@inproceedings{CHI-2014-Al-AkkadRBRZ,
	author        = "Amro Al-Akkad and Leonardo Ramirez and Alexander Boden and Dave W. Randall and Andreas Zimmermann",
	booktitle     = "{Proceedings of the 32nd ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/2556288.2557002",
	isbn          = "978-1-4503-2473-1",
	pages         = "1485--1494",
	publisher     = "{ACM}",
	title         = "{Help beacons: design and evaluation of an ad-hoc lightweight s.o.s. system for smartphones}",
	year          = 2014,
}