1. A. G. Nechaev and A. I. Khil’ko, Preprint No. 178, IPF AN SSSR (Inst. of Applied Physics, USSR Academy of Sciences, Nizhni Novgorod, 1987).
2. G. Jin, F. Lynch, C. S. Chiu, and J. H. Miller, J. Acoust. Soc. Am. 100, 193 (1996).
3. B. G. Katsnel’son and V. G. Petnikov, Acoustics of a Shallow Sea (Nauka, Moscow, 1997).
4. J. R. Apel, M. Badiey, C. S. Chiu, et al., IEEE J. Ocean Eng. 22(3), 465 (1997).
5. B. G. Katsnel’son, V. M. Kuz’kin, S. A. Pereselkov, and V. G. Petnikov, in Acoustics of the Ocean: Proceedings of the School-Seminar of Academician L. M. Brekhovskikh (GEOS, Moscow, 1998), p. 273.