1. Paul S. In: Paul S, editor. Surface coatings science & technology, 2nd ed. New York: John Wiley & Sons, 1996. p. 653–69.
2. Bohnke H, Avar L, Hess E. J Coat Technol 1991;63:53.
3. Haacke G, Andrawes FF, Campbell BH. J Coat Technol 1966;68:57.
4. Valet A. In: Zorll U, editor. Light stabilizers for paints. Hannover, Germany: Vincentz Verlag, 1997.
5. Wypych G. In: Handbook of material weathering, 2nd ed. Ontario, Canada: ChemTec Publishing, 1995. p. 95, 273, 108.