1. P. Bamfield and M. G.Hutchings, Chromic Phenomena: Technological Applications of Colour Chemistry, RSC Publishing, U.K., 2nd edn, 2010
2. G. H. Brown , Photochromism, Wiley-Interscience, New York, 1971
3. A. Seeboth and D.Lötzsch, Thermochromic Phenomena in Polymers, Smithers Papra Technology Limited, U.K., 2008
4. Thermochromic Polymers—Function by Design
5. Mechanically-Induced Chemical Changes in Polymeric Materials