Ruay Shiung Chang Chih-Min Wang Po-Hung Chen Replica Selection on Co-allocation Data Grids. 584-593 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3358&spage=584 2004 conf/ispa/2004 ISPA db/conf/ispa/ispa2004.html#ChangWC04