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4. Yu. I. Mitchenko, V. I. Kuzub, et al., Fabrication of Ultrahigh-Strength, Ultrahigh-Modulus Fibres by the Gel Technology Method [in Russian], NIITEkhim, Moscow (1988), p. 34; M. P. Nosov, Khim. Volokna, No. 6, 8?17 (1992).
5. Chemiefasern/Textilindustrie, No. 11/12, T717 (1994).