@inproceedings{  
   author = {P. Baldi},
   title = {Computing with Arrays of Bell-Shaped and Sigmoid Functions.},
   booktitle = {Proceedings of the 1990 conference on Advances in neural information processing systems 3},
   editor = {},
   series = {},
   address = {Denver, CO},
   publisher = {Morgan Kaufmann Publishers Inc.},
   volume = {},   
   pages = {735-742},
   note = {},
   abstract = {},
   keywords = {},
   year = {1990}
}