[1] DAILY MAIL reporter, http://www.dailymail.co.uk/news/article-1336287/Fed-forced-quarantine-1b-100-bills-printing-error-makes-worthless.html (December 7, 2010).

[2] L. Jun, S. Zhenfeng, and C. Qimin, Optics Letters 24, 4821 (2011).

[3] Cheong C, Bowman G, Han TD, Applied Optics 13, 2326 (2008).

[4] B. V. Funt, V. C. Cardei, and K. Bamard, "Method of estimating chromaticity of illumination using neural networks," U.S. patent 5,907,629, (1999).

[5] V. C. Cardei, B. V. Funt, and K. Bamrad, Journal of the optical Society of America, 19, 2374 (2002).

[6] C. Tenglin, Wefan, and Changeheng, IEEE International Conference on Systems, Man and Cybernetics, 2488 (2005).

[7] E. H. Land and J. J. McCann, Journal of the Optical Society of America, 61, 1 (1971).

[8] Z. Farbman, R. Fattal, D. Lischinski, and R. Szeliski, Proceedings of ACM SIGGRAPH, California, 1 (2008).

[9] JR. Shewchuk. Technical Report, CMU-CS-94-125, Pittsburgh, School of Computer Science, Carnegie Mellon University, 1994: 30.

[10] F. Drago, K. Myszkowski, T. Annen, Computer Graphics Forum 22, 419 (2003).