Richard Wheeldon Mark Levene Kevin Keenoy DbSurfer: A Search and Navigation Tool for Relational Databases. 144-149 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3112&spage=144 2004 conf/bncod/2004 BNCOD db/conf/bncod/bncod2004.html#WheeldonLK04