Karl Branting James C. Lester Bradford W. Mott Dialogue Management for Conversational Case-Based Reasoning. 77-90 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3155&spage=77 2004 conf/ewcbr/2004 ECCBR db/conf/ewcbr/eccbr2004.html#BrantingLM04