1. Committee on Colorimetry of the Optical Society of America.The science of color. New York: Crowell, 1953. P. 108.
2. Galifret, Y. Les psychophysiques de la saturation chromatique.Année Psychol., 1959, 59, 35–46.
3. Godlove, I. H. Neutral value scales: II. A comparison of results and equations describing value scales.J. Opt. Soc. Amer., 1933, 23, 419–425.
4. Holmberg, L. Psychophysical experiments on colour saturation.Psychol. Res. Bull. (Lund University), 1964, 4 (4), 1–22.
5. Holmberg, L. Discontinuity in the subjective scale of colour saturaas a result of a shift of instruction.PsychoI. Res. Bull. (Lund University), 1965, 5 (3), 1–8.