1. American Society for Testing and Materials, ASTM E 284, “Standard Terminology of Appearance,” inASTM Standards on Color and Appearance Measurement, 5th ed., ASTM, Philadelphia, PA, 1996.
2. Hunter, R.S. and Harold R.W., “The Measurement of Appearance,” 2nd ed., John Wiley & Sons, New York, 1987.
3. International Standard ISO 2813, “Paint and Varnishes—Measurements of Specular Gloss of Nonmetallic Paint Films at 20°, 60°, and 85°,” International Organization for Standardization, 1978.
4. American Society for Testing and Materials, ASTM D523, “Standard Test Method for Specular Gloss,” inASTM Standards on Color and Appearance Measurement, 5th ed., ASTM, Philadelphia, PA, 1996.
5. Commission International de l’Eclairage,International Lighting Vocabulary, Colorimetry, 2nd ed., Publ. No. 15.2, 1986.