1. Leitman, B.V., Shtoporova, T.I., and Platonova, O.V., Plast. Massy, 1979, no. 6, pp. 59–64.
2. Vaculik, P.,, Chemie Monomeru, Praha, 1956.
3. Labine, R.A., Chem. Eng., 1960, vol. 67, no. 4, pp. 112–118.
4. Ushio Shota, Chem. Eng., 1971, vol. 29, pp. 24–26.
5. Mandel’shtam, T.V., Ioffe, B.V., Artsibasheva, Yu.P., and Bolotov, B.A., Sovremennye metody organicheskogo sinteza (Modern Methods of Organic Chemistry), Leningrad: LGU, 1974.