1. Land, E. H., Proc. U.S. Nat. Acad. Sci., 45, 1, 115; 4, 636 (1959).
2. Land, E. H., Sci. Amer., 84 (May 1959).
3. Cornwell-Clyne, A., “Colour Cinematography”, third ed. (Chapman and Hall, Ltd., 1951).
4. de Groot, W., and Kruithof, A. A., Philips Tech. Rev., 12, 5, 137 (1950).