1. Yu. Z. Miropol’skii, Dynamics of Internal Gravity Waves in the Ocean (Gidrometeoizdat, Leningrad, 1981) [in Russian].
2. O. Phillips, The Dynamics of the Upper Ocean (Cambridge University Press, London, 1966; Gidrometeoizdat, Leningrad, 1980).
3. A. L. Fabrikant and Yu. A. Stepanyants, Wave Propagation in Shear Flows (Nauka-Fizmatlit, Moscow, 1996) [in Russian].
4. J. Pedlosky, Waves in the Ocean and Atmosphere: Introduction to Wave Dynamics (Springer, Berlin, 2010).
5. B. R. Sutherland, Internal Gravity Waves (Cambridge University Press, Cambridge, 2010).