1. Druckman, D., Bjork, R.A.: In the Mind’s Eye: Enhancing Human Performance (1991)
2. Gee, J.P.: What Video Games have to Teach us About Learning and Literacy. Palgrave Macmillan, Basingstoke (2003)
3. Kirriemuir, J., McFarlane, A.: Literature Review in Games and Learning. A Report for NESTA Futurelab (2003),
http://www.nestafuturelab.org/
4. Salen, K., Zimmerman, E.: Rules of play: Game Design Fundamentals, pp. 92 & 578–579. MIT Press, Cambridge (2004)
5. Sharples, M.: The Design of Personal Mobile Technologies for Lifelong Learning. Computer & Education 34, 177–193 (2000)