    @inproceedings {1723,
	title = {A Tool for Functions Approximation by Neural Networks},
	booktitle = {5th European Congress of Intelligent Techniques and Soft Computing (EUFIT {\textquoteright}97)},
	year = {1997},
	pages = {557-564},
	address = {Aachen (Germany)},
	author = {L Pino and Javier Lopez and Francisco Lopez and Carlos Maraval}
}
