Barbara Heller Heinrich Herre Kristin Lippoldt Domain-Specific Concepts and Ontological Reduction within a Data Dictionary Framework. 47-62 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2994&spage=47 2004 conf/dils/2004 DILS db/conf/dils/dils2004.html#HellerHL04