Andrew Woolf Ray Cramer Marta Gutierrez Kerstin Kleese van Dam Siva Kondapalli Susan Latham Bryan Lawrence Roy Lowry Kevin O'Neill 182-188 2005 conf/ccgrid/2005 CCGRID http://doi.ieeecomputersociety.org/10.1109/CCGRID.2005.1558552 db/conf/ccgrid/ccgrid2005.html#WoolfCGKDKLLLO05