1. H. Schnell, Chemistry and Physics of Polycarbonates, Interscience, New York, 1964.
2. W. F. Christopher and D. W. Fox, Polycarbonates, Reinhold, New York, 1962.
3. L. Bottenbruch, Encycl. Polym. Sci. Technol., 10, 710 (1969).
4. D. Freitag, U. Grigo, P. Müller and W. Nouvertn, Polycarbonates, in: Mark, H., Overberger C. and Bikales, N. (eds.), Encyclopedia of Polymer Science and Engineering, Vol. 11, Wiley, New York, 1987, p. 648.
5. H. Sakamoto, K. Shigematsu, Jpn. Kokai. Tokyo. Koho., JP 63010623 (1988).