Adrian David Cheok Fong Siew Wan Kok Hwee Goh Xubo Yang Wei Liu Farzam Farbiz Human Pacman: a sensing-based mobile entertainment system with ubiquitous computing and tangible interaction. 106-117 2003 conf/netgames/2003 NETGAMES http://doi.acm.org/10.1145/963900.963911 db/conf/netgames/netgames2003.html#CheokWGYLF03