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2. Chevreul, M.-E.: The Principles of Harmony and Contrast of Colors (English translation by Faber Birren). Reinhold, New York (1967)
3. Albers, J.: The Interaction of Color. Yale University Press, New Haven (1963)
4. Hurvich, L.M., Jameson, D.: From contrast to assimilation; in art and in the eye. Leonardo. 8, 125–131 (1975)
5. Hering, E.: Outlines of a Theory of the Light Sense (Translated by Leo M. Hurvich and Dorothea Jameson). Harvard University Press, Cambridge, MA (1964)