Chérif Mballo Edwin Diday The criterion of Kolmogorov-Smirnov for binary decision tree: Application to interval valued variables. 325-341 2006 10 Intell. Data Anal. 4 http://iospress.metapress.com/openurl.asp?genre=article&issn=1088-467X&volume=10&issue=4&spage=325 db/journals/ida/ida10.html#MballoD06