ABRAHAM, B. & LEDOLTER, J., 1983, Statistical methods for forecasting. Wiley
DRAPPER & SMITH, Applied Regression Analysis, Wiley Series in Probability
HASTIE, T.J, TIBSHIRANI, R.J, 1990. Generalized Additive Models. London, Chapman and Hall.
KOTTEGODA, N. T. & ROSSO, R. 1998. Statistics, Probability and Reability for Civil and Environmental Engineers. McGraw - Hill International Editions.
MAKRIDAKIS, S, WHEELWRIGHT, S. A. & HYNDMAN, R.J.. 1998. Forecasting, Method and Applications. Wiley.
SHUMWAY, R AND STOFFER, D. Time series analysis and its applications, Springer, 2000.