1. Burnash, R.J.C., R.L. Ferral and R.A. Mc. Guire, 1973: A generalized streamflow simulation system. Conceptual modelling for digital computers. National Weather Service, River Forecast Centre, Sacramento, California.
2. Georgakakos, K.P. and R.L. Bras, 1982: A precipitation model and its use in real time river flow forecasting. Ralph M. Parsons Laboratory, Hydrology and water resources systems, Report number 286, Massachusetts.
3. Goodwin, C.G. and K.S. Sin, 1984: Adaptive Filtering, Prediction and Control.Prentice-Hall, New Jersey.
4. Milford, J.R. and G. Dugdale, 1989: Estimation of rainfall using geostationary satellite data. Applications of Remote Sensing in Agriculture, Proc. of 48th Easter School in Agricultural Science, University of Nottingham,Butterworth, London.
5. Moll, J.R. and Crebas, J.I. (1989): An Operational Management System for River Flows. IAHR 3rd Scientific Assembly, Symposium Closing the Gap between Theory and Practise, Baltimore, U.S.A., may 16–18.