4SEE L, OPENSHAW S. Applying soft computing approaches to river level forecasting[ J ]. Hydrological Sciences Journal, 1999, 44(5) : 763-768.
5CHANG F J, HWANG Y Y. A self organization algorithm for real-time flood forecast[ JJ. Hydrological Processes, 1999, 13: 123-138.
6ROSENSTEIN M T, COLLINS J J, DE LUCA C J. A practical method for calculating largest lyapunov exponents from small data sets[ J ~. Physica D : Nonlinear Phenomena, 1993, 65 ( 1 ) : 117-134.
