Pauline Lienhua Chou Xiuzhen Zhang Computing Complex Iceberg Cubes by Multiway Aggregation and Bounding. 108-117 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3181&spage=108 2004 conf/dawak/2004 DaWaK db/conf/dawak/dawak2004.html#ChouZ04