References
- Holmströrn I. 1969. Extrapolation of meteorological data. Sveriges meteorologiska oh hydrologiska instituts Notiser och prelimintira rapporter. Stockholm.
- Namias, J. 1953. Thirty-day forecasting. Meteoro-logical Monographs, vol. 2, no. 6. Boston, Mass.
- World Meteorological Organization. 1962. The present status of long-range forecasting in the world. Technical Note no. 48 WMO No. 126.TP.56. Geneva.