1. P. Smith and P. J. Lemstra, J. Mater. Sci.,15, No. 26, 505?514 (1980).
2. A. V. Savitskii, I. A. Gorshkova, et al., Vysokomol. Soed., Ser. A,26, No. 9, 1801?1809 (1984).
3. Brochures of the Allied Corporation (USA), DSM Corporation (The Netherlands), and Mitsui Petrochemical Industries Ltd. (Japan).
4. Application for Inventor's Certificate 4814095/05 (043084) (1990) (USSR).
5. P. M. Pakhomov, V. P. Napasnikov, et al., Vysokomol. Soed., Ser. A,32, No. 1, 132?135 (1990).