"HistoBrick": Mobile Edutainment into Descriptive Statistics ("HistoBrick": Mobiles Edutainment zur Deskriptiven Statistik). - Georg Ströhlein (i-com, 2004)

Exploring the Use of Cellular Phones for Pervasive eLearning. - Bernd J. Krämer; Georg Ströhlein (PerCom Workshops, 2006)