1. Hunicke, R., LeBlanc, M., Zubek, R.: MDA: a formal approach to game design and game research work. In: Challenges Game AI, pp. 1–4 (2004)
2. Flanagan, M., Nissenbaum, H., Howe, D.C., Nissenbaum, H.: Embodying Values in Technology: Theory and Practice. Cambridge University Press, Cambridge (2008)
3. Flanagan, M., Nissenbaum, H.: Values at Play in Digital Games. MIT Press, Cambridge (2014)
4. Sandovar, A.: Ph.D. Dissertation
5. Marklund, B.B.: Out of context – understanding the practicalities of learning games. In: Proceedings of DiGRA 2014 Conference (2014)