1. 1. Kurasima, A., 1956: Introduction of Meteorology of U.S.S.R. No. 6. Weather Service Bulletin, 23, 423 (in Japanese).
2. 2. Matsukura, H., 1952: Discontinuous progress of climate and its forecasting by making use of aerological data. Jour. Met. Research, 4, 426-436 (in Japanese).
3. 3. Ogawara, M., 1942: On the sampling error of correlation coefficients. Jour. Met. Soc. Japan, II, 20, 296-311 (in Japanese).
4. 4. Sakuraba, S. and Ogawara, M., 1957: Hand Book of Meteorological Tables and Formulas (Series of Meteorological Hand Book, No. 19). Chizin Syokan, Tokyo, Japan.
5. 5. Segawa, T., 1957: Relation between meteorological elements of Mt. Fuji or Mt. Iwate and temperature of Hokkaido. Method and Data of Seasonal Weather Forecasting of Hokkaido, No. 1 (in Japanese).