@inproceedings{CHI-2009-MagielseM,
	author        = "Remco Magielse and Panos Markopoulos",
	booktitle     = "{Proceedings of the 27th ACM SIGCHI Conference on Human Factors in Computing Systems}",
	doi           = "10.1145/1518701.1519033",
	isbn          = "978-1-60558-246-7",
	pages         = "2181--2184",
	publisher     = "{ACM}",
	title         = "{HeartBeat: an outdoor pervasive game for children}",
	year          = 2009,
}