"Radiation-induced changes in the index of refraction, density, and dielectric constant of poly(methyl methacrylate)" 11. 1967: 1065–1078. ISSN0021-8995. doi:10.1002/app.1967.070110706.
"Radiation-induced changes in the index of refraction, density, and dielectric constant of poly(methyl methacrylate)" 11. 1967: 1065–1078. ISSN0021-8995. doi:10.1002/app.1967.070110706.