1. Wool R P (1980) Polym Eng Sci 20:805
2. Vettegren' V I (1987) Doctorate Thesis, Ioffe Phys-Tech Inst, Leningrad
3. Siesler H (1984) Adv Polym Sci 65:1
4. Theodorou M, Jasse B, Monnerie L (1985) J Pol Sci Phys 17:236
5. Jashin V, Sheiko S, Zhuk A, Vainilovitch I, Magonov S (1989) Prib Tehn Eksp (Russ.Ed.) 4:246