Malgorzata Kretowska Leon Bobrowski Artificial Neural Networks in Identifying Areas with Homogeneous Survival Time. 1008-1013 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3070&spage=1008 2004 conf/icaisc/2004 ICAISC db/conf/icaisc/icaisc2004.html#KretowskaB04