1. Polyimides: A Class of Thermally Stable Polymers, Ed. by M. I. Bessonov, M. M. Koton, V. V. Kudryavtsev, and L. A. Laius (Nauka, Leningrad, 1983) [in Russian].
2. R. Dine-Hart and W. Wright, J. Appl. Polym. Sci. 11 (5), 609 (1967).
3. Y. Miao, G. Zhu, H. Hou, Y. Xia, and T. Liu, J. Power Sources 226, 82 (2013).
4. G. Bader, R. Swaidan, E. Litwiller, and I. Pinnau, Adv. Mater. 22, 46 (2014).
5. O. D. Gendrikson, A. V. Zherdev, and B. B. Dzantie, Usp. Biol. Khim. 46, 149 (2006).