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2. V. V. Zhoga and V. M. Chernyshev, ?The vibration absorbing properties and vibrations of rods with damping coatings?, Izv. Vyssh. Uchebn. Zaved., Mashinostr., No. 8, 33?38 (1980).
3. S. V. Morgulets, ?Features of multifrequency resonant vibrations of elastic systems with amplitude-dependent hysteresis friction?, Probl. Prochn., No. 11, 80?84 (1981).
4. A. P. Bovsunovskii, V. V. Matveev, and B. S. Chaikovskii, ?The damping capacity of rods in two-frequency bending vibrations,? ibid, No. 12, 83?87 (1983).
5. G. S. Pisarenko, A. A. Lebedev, V. V. Matveev, et al., The Strength of Materials and Structural Elements under Extreme Conditions (Two Volumes) [in Russian], Vol. 1, Naukova Dumka, Kiev (1980).