1. Boynton, R.M. (1979). Human Color Vision. New York: Holt, Rinehart & Winston.
2. Boynton, R.M. & Kambe, N. (1980). Chromatic difference steps of moderate size measured along theoretically critical axes. Color Res. and Appl. 5: 13–23.
3. Hood, D. & Greenstein, V. (1980). Increment threshold (tvi) data and the site of disease action. In: Noninvasive Assessment of the Visual System. Optical Society of America Technical Digest Series 3: 2–5.
4. Judd, D.B. (1951). Colorimetry and artificial daylight, in: Technical Committee No. 7. Report of Secretariat United States Commission, International Commission on Illumination, Twelfth Session, pp. 1–60. Stockholm.
5. Kalloniatis, M. & Harwerth, R. (1989). Differential adaptation of cone mechanisms explains the preferential loss of short-wavelength cone sensitivity in retinal disease. In: Drum, B. and Verriest, G. (eds.), Colour Vision Deficiencies IX, Doc. Ophthalmol. Proc. Ser. 52: 353–364. Dordrecht: Kluwer.