1. Khimicheskii entsiklopedicheskii slovar’ (Chemical Encyclopedia), Knunyants, I.L., Ed., Moscow: Sovetskaya Entsiklopediya, 1983.
2. Production of Propylene and Ethylene Carbonates, Hydrocarbon Proc., 1975, vol. 54, no. 11, p. 144.
3. Polish Patent PL 138 902, 1988.
4. Kuran, W., Appl. Organomet. Chem., 1991, vol. 5, no. 3, pp. 191–194.
5. Gorski, R. and Klimec, J., Przem. Chem., 1991, vol. 70, no. 9, pp. 392–394.