1Janet Murray, "From Game -Story to Cyberdrama" in Noah Wardrip- Fruin and Pat Harrigan, ed. First Person: New Media as Story, Performance, and Game. Cambridge and London: The MIT Press, 2003. p. 2.
2Chris Crawford, "Interactive Storytelling" in Mark J. P. Wolf and Bernard Perron, ed. Video/Game/Theory. Routledge, 2003. p. 259.
3Gonzalo Frasca, "Simulation versus Narrative: Introduction to Ludology" in Mark J.P. Wolf and Bernard Perron, ed. Video/Game/Theory. Routledge, 2003. p. 230.
4Torben Grodal, "Stories for Eye, Ear, and Muscles" in Mark J. P. Wolf and Bernard Perron, ed. Video/Game/Theory. Routledge, 2003. p. 130.
5Charles Sanders Peirce, Collected Papers, Cambridge Mass, Harvard University Press, 1931-1958, vol 2, p. 228.
