Buur, Jacob; Soendergaard, Astrid (1 de janeiro de 2000). «Video card game». Video card game: an augmented environment for user centred design discussions. [S.l.]: Designing Augmented Reality Environments. pp. 63–69. doi:10.1145/354666.354673
Segelström, Fabian; Raijmakers, Bas; Holmlid, Stefan (Janeiro de 2009). «Thinking and Doing Ethnography in Service Design»(PDF). Linköping University, Department of Computer and Information Science. Consultado em 27 de fevereiro de 2018
Buur, Jacob; Soendergaard, Astrid (1 de janeiro de 2000). «Video card game». Video card game: an augmented environment for user centred design discussions. [S.l.]: Designing Augmented Reality Environments. pp. 63–69. doi:10.1145/354666.354673