[1] Tony Belpaeme. Simulating the formation of color categories. In Proceedings of the Seventeenth International Joint Conference on Artificial Intelligence (IJCAI'01), Seattle, WA, 2001.

[2] Brent Berlin and Paul Kay. Basic Color Terms. Their Universality and Evolution. University of California Press, Berkeley, CA, 1969. Reprinted in 2000.

[3] Marc H. Bornstein. Color vision and color naming: a psychophysiological hypothesis of cultural difference. Psychological Bulletin, 80(4):257--285, 1973.

[4] D.S. Broomhead and D. Lowe. Multivariable functional interpolation and adaptive networks. Complex Systems, 2:321--355, 1988.

[5] Roger W. Brown and Eric H. Lenneberg. A study in language and cognition. Journal of Abnormal and Social Psychology, 49:454--462, 1954.

[6] Bart de Boer. The origins of vowel systems. Oxford University Press, 2001. To appear.

[7] Eleanor (Rosch) Heider. Universals in color naming and memory. Journal of Experimental Psychology, 93:10--20, 1972.

[8] Johan M. Lammens. A computational model of color perception and color naming. PhD thesis, State University of New York, Buffalo, 1994.

[9] John A. Lucy. The linguistics of ``color''. In Clyde L. Hardin and Luisa Maffi, editors, Color Categories in Thought and Language. Cambridge University Press, 1997.

[10] J. Parkkinen, J. Hallikainen, and T. Jaaskelainen. Characteristic spectra of Munsell colors. Journal of Optical Society of America, 6(2):318--322, 1989.

[11] Barbara Saunders and Jaap van Brakel. Are there nontrivial constraints on colour categorization? Behavioral and Brain Sciences, 20:167--228, 1997.

[12] Luc Steels. The synthetic modeling of language origins. Evolution of Communication, 1(1):1--35, 1997.

[13] Luc Steels. Synthesising the origins of language and meaning using co-evolution, self-organisation and level formation. In James R. Hurford, Michael StuddertKennedy, and Chris Knight, editors, Approaches to the Evolution of Language. Cambridge University Press, 1998.

[14] B.L. Whorf. Language, Thought and Reality. Cambridge, MA, The MIT Press, 1956.