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2. A. K. Malmeister, V. P. Tamuzh, and G. A. Teters, Resistance of Rigid Polymer Materials [in Russian], Riga (1972).
3. V. V. Bolotin, in: Strength Calculations, Vol. 12 [in Russian], Moscow (1966), p. 3.
4. A. M. Skudra, F. Ya. Bulavs, and K. A. Rotsens, Creep and Static Fatigue of Reinforced Plastics [in Russian], Riga (1971).
5. G. A. Van Fo Fy, Constructions Made from Reinforced Plastics [in Russian], Kiev (1971).