2F. Girosi,T. Poggio. Networks and the best approximation property[J] 1990,Biological Cybernetics(3):169～176
3G. Cybenko. Approximation by superpositions of a sigmoidal function[J] 1989,Mathematics of Control, Signals, and Systems(4):303～314
4T. P. Vogl,J. K. Mangis,A. K. Rigler,W. T. Zink,D. L. Alkon. Accelerating the convergence of the back-propagation method[J] 1988,Biological Cybernetics(4-5):257～263
