1. Needham, J., Science and Civilization in China, Cambridge: Cambridge University Press, 1998, vol. 5, ch. 2.
2. Auckland, G., Magic Mirror, or through the Looking Glass, in http://www.grand-illusions.com (2003);
3. Chinese magic mirrors can be purchased from this web site.
4. Yu, F.T.S., Entropy and Information Optics, New York: Marcel Dekker, 2000.
5. Ives, H.E., Improvement in the Diffraction Process of Color Photography, Br. J. Photog., 1906, p. 609.