Donald MacDonald Jos Koetsier Emilio Corchado Colin Fyfe Juan M. Corchado A Kernel Method for Classification. 823-832 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2972&spage=823 2004 conf/micai/2004 MICAI db/conf/micai/micai2004.html#MacDonaldKCFC04