Periklis Andritsos Panayiotis Tsaparas Renée J. Miller Kenneth C. Sevcik LIMBO: Scalable Clustering of Categorical Data. 123-146 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2992&spage=123 2004 conf/edbt/2004 EDBT db/conf/edbt/edbt2004.html#AndritsosTMS04