Thomas Fahringer Jun Qin S. Hainzer Specification of grid workflow applications with AGWL: an Abstract Grid Workflow Language. 676-685 2005 conf/ccgrid/2005 CCGRID http://doi.ieeecomputersociety.org/10.1109/CCGRID.2005.1558629 db/conf/ccgrid/ccgrid2005.html#FahringerQH05