Okayasu, A., T. Shibayama and N. Mimura (1986): Velocity Fierd under Plunging Waves, Proc. Int. Conf. Coastal Engneering, ASCE, pp.660-674.
Nadaoka, K., M. Hino and Y. Koyano (1989): Structure of the turbulent flow field under breaking waves in the surf zone, J. Fluid Mech., Vol.204, pp.359-387.
Watanabe, Y., and N. Mori (1997): Three-Dimensional Characteristics of Velocity Field and Effects of Undertow in a Surf Zone, Proc. the Seventh Int. Offshore and Porlar Eng. Conf., Vol.3, pp.247-253.