1. ISO 8586-1. Sensory Analysis-General Guidance for the Selection, Training and Monitoring of Assessors-Part 1: Selected Assessors. International Organization for Standardization, Geneva, Switzerland, 1993.
2. ISO/DIS 13299.2. Sensory analysis-Methodology-Guidance for establishing a sensory profile. ISO, Denmark, 1998.
3. Absorption spectra of human cone pigments
4. ROLE OF HYDROXYL-BEARING AMINO ACIDS IN DIFFERENTIALLY TUNING THE ABSORPTION SPECTRA OF THE HUMAN RED AND GREEN CONE PIGMENTS
5. Sensory Evaluation Techniques