1. Flory, P. J.: Proc. Roy. Soc. (London) A. 234, 60 (1956)
2. Papkov, S. P., Kulichikhin, V. G.: Liquid-crystalline state of polymers (in Russian), Moscow: Khimiya 1977
3. Elyashevich, G. K., Frenkel, S. Ya., in: Orientational phenomena in polymer solutions and melts (in Russian), Moscow: “Khimiya, p. 9–90, 1980. See also: Elyashevich, G. K., Frenkel, S. Ya.: Vysokomol. Soedin. 21 B, 920 (1979)
4. Marikhin, V. A., Myasnikova, L. P.: Supermolecular structure of polymers (in Russian), Leningrad: Khimiya 1977
5. Sakurada, J., Ito, T., Nakamae, K.: J. Polym. Sci. C 15, 75 (1966)