1. Hasunuma, K. andK. Yoshida (1978): Splitting of the subtropical gyre in the western North Pacific. J. Oceanogr. Soc. Japan,34, 160–172.
2. Japan Maritime Safety Agency (1960, 1961, 1964): Tables of results from oceanographic observation. Hydrogr. Bull., (64), (66), (68) and (77).
3. Japan Maritime Safety Agency (1965–1979): Data report of hydrographic observations—Series of Tide, Nos. 1–14.
4. Japan Meteorological Agency (1957–1971): The results of marine meteorological and oceanographical observations (July to Dec., 1956–Jan. to June, 1969), Nos. 20–45.
5. Japan Meteorological Agency (1958–1978): Annual report of the Japan Meteorological Agency. Meteorological observations for 1957 to 1977.