1. M.I. Bessonov, M.M. Koton, V.V. Kudryavtsev and L.A. Laius, Polyimides-Thermally Stable Polymers. USSR, Plenum, USA (1987).
2. C.E. Sroog, Macromolecular Reviews
11 (1976) 161.
3. N.A. Adrova, M.I. Bessonov, L.A. Laius and A.P. Rudakov, Polyimides-A New Class of Thermally Stable Polymers, USSR, Technomics-USA (1970).
4. J.P. Critchley, G.J. Knight and W.W. Wright, Heat-Resistant Polymers, Plenum (1983).
5. P.E. Cassidy, Thermally Stable Polymers, Marcel Dekker (1980).