E-Learning and Games for Training, Education, Health and Sports 7th International Conference, Edutainment 2012 and 3rd International Conference, GameDays 2012, Darmstadt, Germany, September 18-20, 2012. Proceedings - Göbel, Stefan; Müller, Wolfgang; Urban, Bodo; Wiemeyer, Josef (Springer Berlin Heidelberg : Imprint: Springer, 2012)