1. Wikipedia (2010) Art. http://en.wikipedia.org/wiki/Art . Accessed 14 December 2010
2. Chandrasekhar S (1987) Truth and beauty: aesthetics and motivations in science. Chicago University Press, Chicago
3. Pfenninger KH, Shubik VR (2001) The origins of creativity. Oxford University Press, New York
4. Heisenberg W (1974) The meaning of beauty in the exact sciences. In: Anshen RN (ed) Across the frontiers. Harper & Row, New York
5. Spector TI, Schummer J (2003) HYLE 9:3