References
- ECRART, C., 1960, Hydrodynamics of Oceans and Atmospheres, Pergamon, New York, p. 258.
- STERN, M. E., 1963, Trapping of low frequency oscillations in an equatorial boundary layer, Tellus, Vol. 15, pp. 246–250.
- WHITHAM, G. B., 1960, A note on group velocity, J. Fluid Mech. 9, p. 347.