1. ISO/IEC 19794-6:2011. Information Technology – Biometric Data Interchange Formats – Part 6: Iris Image Data. Standard, International Organization for Standardization, Geneva, 2011. (accessed 4.24).
2. L. Flom, A. Safir, Iris recognition system, U. S. Patent No. 4, 641, 349, 1987.
3. J. Daugman, Biometric personal identification based on iris analysis, U. S. Patent No. 5, 291, 560, March 1884.
4. High confidence visual recognition of persons by a test of statistical independence;Daugman;IEEE Trans. Pattern Anal. Mach. Intell.,1993
5. La Couleur de l’iris;Bertillon;Rev. Sci.,1885