1. Adler, R. F. and Mack, R. A.: 1984, ‘Thunderstorm Cloud Height-Rainfall Rate Relations for Use with Satellite Rainfall Estimation Techniques’, J. Clim. Appl. Meteorol. 23, 280–296.
2. Alexandersson, H.: 1994, Some Comments on Recent Climate Fluctuations -from a Swedish Horizon. Climate Variations in Europe, Proceedings of the European Workshop on Climate Variations held in Kirkkonummi, Finland, 15-18 May 1994, Publ. of the Academy of Finland, pp. 293–305.
3. Allerup, P. and Madsen, H.: 1980, ‘Accuracy of Point Precipitation Measurements’, Nord. Hydrol. 11, 57–70.
4. Arkin, P. A. and Ardanuy, P. E.: 1989, ‘Estimating Climate-Scale Precipitation from Space: A Review’, J. Clim. 2, 1229–1238.
5. Biswas, A. K.: 1970, History of Hydrology, North-Holland Pub. Co., Amsterdam; American Elsevier Pub. Co., New York, 336 pp.