1. Structural Colors in the Realm of Nature
2. Many white paints may seem to lack an absorbing pigment, while they do absorb in the UV.
3. The Splendour of Iridescence: Structural Colors in the Animal World;Simon,1971
4. Iridescent Color: From Nature to the Painter's Palette
5. Newton, I. [Opticks] (17301, reprint, Dover Publications Inc., New York (1952).