1. Y. Khaletskiy, V. Povarkov, and R. Shipov, “The Study of Combined Acoustic Liners for Turbofan Noise Reduction,” in: Proc. 16th Int. Congr. Sound and Vibration (ICSV16). Krakow, Poland, 2009 (2009).
2. Y. Khaletskiy, V. Povarkov, and R. Shipov, “Experimental Study of the Turbofan Hush Kit Response,” in: Proc. 17th Int. Congr. Sound and Vibration (ICSV17). Cairo, Egypt, 2010 (2010).
3. A.F. Sobolev, “Semiempirical Theory of Single-Layer Cellular Sound-Absorbing Structures with a Perforated Frontal Surface,” Akust. Zh. 53, 861 (2007).
4. A.F. Sobolev, V.G. Ushakov, and R.D. Filippova, “Sound-Absorbing Homogeneous Structures for the Channels of Aircraft Engines,” Akust. Zh. 55, 749 (2009).
5. I.V. Lebedeva and S.P. Dragan, “Determination of Acoustic Characteristics in Tubes Using Two Microphones,” Izmerit. Tekhn. No. 8, 52 (1988).