Ivona Brandic Sabri Pllana Siegfried Benkner An approach for the high-level specification of QoS-aware grid workflows considering location affinity. 231-250 2006 14 Scientific Programming 3-4 http://iospress.metapress.com/openurl.asp?genre=article&issn=1058-9244&volume=14&issue=3&spage=231 db/journals/sp/sp14.html#BrandicPB06