1. V. A. Krasil’nikov and V. V. Krylov, Introduction into Physical Acoustics (Nauka, Moscow, 1984) [in Russian].
2. V. L. Ginzburg, Akust. Zh. 1 (1), 31 (1955).
3. V. V. Krylov, Vestn. Mosk. Univ., Ser. 3: Fiz. Astron. 23 (2), 42 (1982).
4. V. Yu. Zaitsev, V. E. Nazarov, and A. E. Shul’ga, Acoust. Phys. 46 (3), 295 (2000).
5. J. Mobley, K. R. Waters, and J. G. Miller, J. Acoust. Soc. Am. 114 (5), 2782 (2003).