References

Klein, P. in: Symmetry: Culture and Science, Vols. 1(1990); 3(1992); 6(1995); 9(1998)

Klein, P. (1996) in:W.Hahn/P.Weibel (eds), Evolutionäre Symmetriethorie, Stuttgart

Klein, P. (1997) in: Mitteilungen des Arbeitskreises Geschichte der Geophysik, Vol.16

Klein, P. (2004) The selforganizing Universe and the idea of symmetry: Cognition

               and expression, Symmetry: Art and Science - Tihany Congress 2004