1. Ramberg, S. E. , Barber, M. E. & Griffin, O. M. 1985 Laboratory studies of steep and breaking deep water waves in a convergent channel.NRL Rep. 5610.
2. Greenhow, M. 1983 Free-surface flows related to breaking waves.J. Fluid Mech. 134,259.
3. Suhayda, J. N. & Pettigrew, N. R. 1977 Observations of wave height and wave celerity in the surf zone.J. Geophys. Res. 82,1419.
4. Mason, M. A. 1952 Some observations of breaking waves. Gravity Waves.Natl Bur. Stand. Circ. 521, p.215.
5. Jansen, P. A. 1986a The period-doubling of gravity-capillary waves.J. Fluid Mech. 172,531.