1. Adams, E. (2003). The construction of ludic space. In Proceedings of: DIGRA conference: Level up, Utrecht, the Netherlands. Accessed 16.08.13.
2. Digital media studies futures;Aslinger;Media, Culture and Society,2013
3. Aspers, P. (2001). Markets in fashion, A phenomenological approach. Stockholm: City University Press (Chapter: Appendix A: A Guide to Phenomenological Sociology).
4. Achievements, motivations and rewards in faunasphere;Begy;Game Studies,2011
5. The wealth of networks: How social production transforms markets and freedom;Benkler,2006