1. Anon.Synthetic Materials used in the Conservation of Cultural Properties; Rome Center, (ICCROM) 1963, pp 21, 38, 43, 51.
2. Autelman, Marvin S.The Analytical Encyclopedia of Thermoplastic Materials, Sadtler Research Lab, Phila., 1974, pp 74–76.
3. Feller, Robert L.Cross-Linking of Methacrylate Polymers by Ultraviolet Radiation, Paper No. 73, New York Meeting American Chemical Society, Sept. 1957, Vol 17, No. 2, pp 465–470, CAL Reprint No. 714.