1. Huizinga J (1964) Homo ludens: a study of the play-element in culture. Beacon Press, Boston
2. Carse JP (1987) Finite and infinite games. Ballantine Books, New York
3. Csikszentmihalyi M (1990) Flow: the psychology of optimal experience. Harper & Row, New York
4. Duncan C (1995) Civilizing rituals: Inside public art museums. Routledge, London
5. Bell G (2002) Making sense of museums: the museum as ‘cultural ecology’. Intel Labs, pp 1–17