1. Yu. A. Koryakin, S. A. Smirnov, and G. V. Yakovlev, Ship Hydroacoustic Technique: State and Virtual Problems (Nauka, St.–Petersburg, 2004) [in Russian].
2. J. W. Strutt (3rd Baron Rayleigh), The Theory of Sound (MacMillan, London, 1984; GITGL, Noscow, 1955).
3. A. A. Kharkevich, Zh. Tekh. Fiz., 8, 1889–1895 (1938).
4. E. Sludrzik, The Foundations of Acoustics: Basic Mathematics and Basic Acoustics (Springer–Verlag, Wien, 1971; Mir, Moscow, 1976).
5. V. V. Furduev, The Theorems of Reciprocity (GITGL, Moscow–Leningrad, 1948) [in Russian].