Lars-Olof Burchard Matthias Hovestadt Odej Kao Axel Keller Barry Linnert The virtual resource manager: an architecture for SLA-aware resource management. 126-133 2004 conf/ccgrid/2004 CCGRID http://doi.ieeecomputersociety.org/10.1109/CCGrid.2004.1336558 db/conf/ccgrid/ccgrid2004.html#BurchardHKKL04