Sven Graupner Akhil Sahai Policy-based resource topology design for enterprise grids. 390-397 2005 conf/ccgrid/2005 CCGRID http://doi.ieeecomputersociety.org/10.1109/CCGRID.2005.1558581 db/conf/ccgrid/ccgrid2005.html#GraupnerS05