1. N. M. Émanuél', and A. L. Buchachenko, in: The Chemical Physics of Polymer Aging and Stabilization [in Russian], Nauka, Moscow (1982), p. 359.
2. V. G. Oleinik, L. V. Kut'ina, et al., Khim. Volokna, No. 3, 6?8 (1970).
3. M. Krull, A. Kogerman, et al., J. Chromatogr., 135, 212?216 (1977).
4. B. M. Kovarskaya, A. B. Blyumenfel'd, and I. I. Levantovskaya, in: The Thermal Stability of Heterogeneous Polymers [in Russian], Khimiya, Moscow (1977), p. 24.
5. M. P. Nosov and S. S. Teplitskii, in: Fiber Fatigue [in Russian], Technika, Kiev (1975), p. 92.