1. A. H. Frazer, High-Temperature Resistant Polymers, Interscience, New York (1968).
2. E. Behr, Hoch Temperatur-Bestandige Kunststoffe, Carl Hanser Verlag, Munich (1969).
3. V. V. Korshak, Heat-Resistant Polymers,Israel program for scientific translations, 1971. (Originally published in Russian in 1969.)
4. T. L. Cottrell, The Strength of Chemical Bonds, 2nd ed., Butterworths, London (1958).
5. V. I. Vedeneyev, L. V. Gurvick, V. N. Kondratyev, V. A. Medvedev, Y. L. Frankevich, Bond Energies, Ionization Potentials and Electron Affinities, Edward Arnold, London (1958).