Gagan Aggarwal Tomás Feder Rajeev Motwani Rina Panigrahy An Zhu Algorithms for the Database Layout Problem. 189-203 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3363&spage=189 2005 conf/icdt/2005 ICDT db/conf/icdt/icdt2005.html#AggarwalFMPZ05