[1]	R. E. Kahn in Non Linear Dynamics in Human Behaviour, World Scientific Publishing Co (1996). 
[2]	J. Bronowski in Scientific Genius and Creativity (W. H. Freeman, New York, 1982)
[3]	R. S. Root-Bernstein, Discovering (Harvard University Press, Cambridge, 1989)
[4]	D. Klahr and Dunbar, Cog. Science, 12, 1 (1988). 
[5]	K. Dunbar, Cog. Science, 17, 397 (1993). 
[6]	J. J. Jenkins in Abilities, Motivation and Methodology: The Minnesota Symposium on Learning and Individual Differences, ed. R. Kaufer, P. L. Ackerman and R. Cudeck (Erlbaum, Hillsdale (1989)). 
[7]	J. Lave and E. Wenger, Situated Learning: Legitimate Peripheral Partecipation (Cambridge University Press, Cambridge and New York, 1991). 
[8]	T. Mullin, ed. , The Nature of Chaos (Oxford University Press, Oxford, 1993). 
[9]	C. A. Skarda and W. J. Freeman, Behavioural and Brain Science, 10, 161 (1987). 
[10]	C. D. Ennis, J. of Curriculum and Supervision, 7, 115 (1992). 
[11]	W. E. Doll. Jr. , A Post-Modern Perspectives on Curriculum (Teachers College Press, New York and London, 1993). 
[12]	G. A. Cziko, Ed. Researcher 18, 17 (1989). 
[13]	R. Domaingue, New Orizons in Adult Education 2, 55 (1988), Eric Document ED 330780. 
[14] 	D. Hesse, Strange Attractors: Chaos Theory and Composition Studies, Eric Document 342010. 
[15]	R. R. Vallacher and A. Nowak, eds. , Dynamical Systems in Social Psychology (Academic Press, San Diego, 1994). 
[16]	E. N. Lorenz, J. of the Atmos Sciences, 20, 130, (1963). 
[17]	G. L. Baker and J. P. Gollub, Chaotic Dynamics: An Introduction (Cambridge University Press, Cambridge and New York, 1990). 
[18]	L. Leslie and J. Caldwell, Qualitative Reading Inventory (Harpen Collins, New York, 1990). 
[19]	J. R. Eiser, Attitudes, Chaos and the Connectionist Mind (Blackwell, Oxford and Cambridge, MA, 1994). 
[20]	I. R. Eiser in Dynamical Systems in Social Psychology, ed. R. R. Vallacher and A. Nowak (Academic Press, San Diego, 1994)
[21]	D. J. Pittenger, Rev. of Ed. Research, 63, 467 (1993). 
[22]	D. K. Campbell in From Cardinal to Chaos: Reflection on the Life and Legacy of Stanishaw Ulam, ed. N. G. Cooper (Cambridge University Press, Cambridge and New York, 1989). 
[23]	R. D. Anderson, J. of Research in Science Teachnig, 29, 861 (1992). 

[1] 	D. D’Humières, M. R. Beasly, B. A. Humberman and A. Libchaber, "Chaotic States and Routes to Chaos in the Forced Pendulum", Phys. Rev. 26 A (1982) 3483. 
[2] 	A. Libchaber and J. Maurer in T. Riste (ed. ): Nonlinear Phenomena at Phase Transitions and Instabilities. NATO Adv. Study Inst., Plenum Press, New York 1982. 
[3] 	H. Haken, "Analogy between Higher Instabilities in Fluids and Lasers", Phys. Lett. 53A (1975) 77. 
[4] 	F. A. Hopf, D. L. Kaplan, H. M. Gibbs and R. L. Shoemaker, "Bifurcations to Chaos in Optical Bistability", Phys. Rev. 25A (1982) 2172. 
[5] 	M. Cirillo and N. F. Pedersen, "On Bifurcations and Transitions to Chaos in a Josephson Junctions", Phys. Lett. 90A (1982) 150
[6] 	R. H. Simoyi, A. Wolf and H. L. Swinney: "One Dimensional Dynamics in a Multicomponent Chemical Reaction", Phys. Rev. Lett. 49 (1982) 245. 
[7] 	R. H. G. Hellemann, in E. G. D. Cohen (ed): Fundamental Problems in Statistical Mechanics. Vol. V, North-Holland, Amsterdam, New York (1980). 
[8] 	R. H. G. Helleman, "Proc. of the 1979 Int. Conf. On Nonlinear Dynamics", Ann. N. Y. Acad. Sci, 603 (1980). 
[9] 	J. M. Wersinger, J. M. Finn and E. Ott in G. Laval and D. Gresillon (eds. ): Intrinsic Stochasticity in Plasmas. Les Editions de Physique, Courtaboeuf, Orsay, France 1980. 
[11] 	L. Glass, M. R. Guevara and A. Shrier, "Bifurcation and Chaos in a periodically Stimulated Cardiac Oscillator", Physica 7D (1983) 89, and A. T. Winfree, Sci. Am. 248, N. 5 (1983). 

[1] 	H. O. Peitgen and P. H. Richter: Harmonic in Chaos und Kosmos, and Morphologie Komplexer Grenzen; Bilder aus der Theory Dynamischer Systeme (1984). 
[2] 	S. Grossman and S. Thomae: Z. Naturforsch 32A, 1353 (1977). 
[3] 	M. J. Feigenbaum: J. Stat. Phys. 19, 25 (1978). 
[4] 	P. Coullet and J. Tresser: J. Phys. (Paris), C5, 25 (1978)
[5] 	R. M. May: Nature 261, 459 (1976). 

[1] E. N. Lorenz, J. Atmos. Sci. 20, 130 (1963). 
[2] B. Saltzman, J. Atmos. Sci. , 19, 329 (1962).