1. Barnes, N. F.: Color characteristics of artists' pigments. J. Opt. Soc. Amer. 29, 208?214 (1939)
2. Brill, M. H.: A device performing illuminant-invariant assessment of chromatic relations. J. Theoret. Biology 71, 473?478 (1978)
3. Brill, M. H.: Computer simulation of object-color recognizers. J. Opt. Soc. Amer. 69, 1405a (1979) (A more detailed discussion appears in the Massachusetts Institute of Technology Research Laboratory of Electronics Progress Reports No. 122, 214?221, 1980)
4. Brill, M. H., West, G.: Contributions to the theory of invariance of color under the condition of varying illumination. J. Math. Biol. 11, 337?350 (1981a)
5. Brill, M. H., West, G.: Spectral conditions for color constancy via Von Kries adaptation. AIC COLOR 81, Berlin, 21?25 September 1981: Proceedings of the 4th Congress of the International Color Association (1981b)