González Sánchez, J. L.; Gutiérrez Vela, F.L.; Montero Simarro, F.; Padilla-Zea, N. (31 Aug 2012). “Playability: analysing user experience in video games”. Behaviour & Information Technology31 (10): 1033–1054. doi:10.1080/0144929X.2012.710648.
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Stanford Ontology Library Video game's Elements OntologyArchived 2010-06-03 at the Wayback Machine.: A video game's elements ontology by González Sánchez, J. L. and Gutiérrez Vela, F. L. University of Granada, Spain.
Stanford Ontology Library Video game's Elements OntologyArchived 2010-06-03 at the Wayback Machine.: A video game's elements ontology by González Sánchez, J. L. and Gutiérrez Vela, F. L. University of Granada, Spain.