1. C. Eckart, Hydrodynamics of Oceans and Atmospheres (Pergamon, Oxford, 1960).
2. J. Pedlosky, Waves in the Ocean and Atmosphere: Introduction To Wave Dynamics (Springer, Berlin, 2010).
3. B. R. Sutherland, Internal Gravity Waves (Cambridge Univ. Press, Cambridge, 2010).
4. S. R. Massel, Internal Gravity Waves in the Shallow Seas (Springer, Berlin, 2015).
5. V. V. Bulatov and Yu. V. Vladimirov, Waves in Stratified Media (Nauka, Moscow, 2015) [in Russian].