1. Donn, W. L. (1949): “Studies of waves and swell in the western North Atlantic”. Trans. Amer. Geophys. Union, 30, p. 507-516.
2. Seiwell, H. R. (1949): “The principles of time series analyses applied to ocean wave data”. Proc. Nat. Acad. Sci., 35 (9), pp.518-528.
3. Sverdrup, H. U. and W. H. Munk (1947): “Wind, sea and swell: Theory of relations for forecasting”. U. S. Navy Hydrographic Office, Technical Report in Oceano graphy, No.1, pp.1-44.
4. Yoshida, K. (1950): “On the mechanism of the period increase of waves in storm areas”. Geophys. Notes, 3 (24), p.1-8.
5. Yoshida, K. (1951a): “Theoretical derivation of equations for the Energy Split-up in the Wind waves”. Geophys. Notes, 4 (6), p.1-5.