Oliver Buchtala Alexander Hofmann Bernhard Sick Fast and Efficient Training of RBF Networks. 43-51 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2714&spage=43 2003 conf/icann/2003 ICANN db/conf/icann/icann2003.html#BuchtalaHS03