1. B. M. Efimtsov, Akust. Zh. 30 (1), 58–61 (1984).
2. B. M. Efimtsov, Akust. Zh. 28 (4), 491–497 (1982).
3. W. D. Moss and S. Baker, Aeronaut. Q. 31, 151–172 (1980).
4. V. N. Bibko, B. M. Efimtsov, and V. B. Kuznetsov, Uch. Zap. TsAGI 17 (3), 9–19 (1986).
5. T. M. Farabee and M. J. Casarella, J. Vib., Acoust., Stress, Reliab. Des. 108, 301–307 (1986).