Cristian Lumezanu Sumeer Bhola Mark Astley Utility Optimization for Event-Driven Distributed Infrastructures. 24 2006 conf/icdcs/2006 ICDCS http://doi.ieeecomputersociety.org/10.1109/ICDCS.2006.84 db/conf/icdcs/icdcs2006.html#LumezanuBA06