Walz, Steffen P.; Ballagas, Rafael; Borchers, Jan; Mendoza, Joel; Kratz, Sven; Wartmann, Christoph; Fuhr, Claudia; Tann, Martin J.; Shin, Dong Youn; Hameed, Bilal; Bardos, Laszlo; Hovestadt, Ludger (2006), "Cell Spell-Casting: Designing a Locative and Gesture Recognition Multiplayer Smartphone Game for Tourists"(PDF), Proc. PERGAMES, Third International Workshop on Pervasive Gaming Applications at PERVASIVE 2006, Dublin, Ireland: LNCS, archived from the original(PDF) on 2007-08-12, retrieved 2007-09-03
web.archive.org
Walz, Steffen P.; Ballagas, Rafael; Borchers, Jan; Mendoza, Joel; Kratz, Sven; Wartmann, Christoph; Fuhr, Claudia; Tann, Martin J.; Shin, Dong Youn; Hameed, Bilal; Bardos, Laszlo; Hovestadt, Ludger (2006), "Cell Spell-Casting: Designing a Locative and Gesture Recognition Multiplayer Smartphone Game for Tourists"(PDF), Proc. PERGAMES, Third International Workshop on Pervasive Gaming Applications at PERVASIVE 2006, Dublin, Ireland: LNCS, archived from the original(PDF) on 2007-08-12, retrieved 2007-09-03
