Chadi Kari Alexander Russell Narasimha Shashidhar Randomized Work-Competitive Scheduling for Cooperative Computing on k-partite Task Graphs. 267-270 2008 NCA http://doi.ieeecomputersociety.org/10.1109/NCA.2008.46 conf/nca/2008 db/conf/nca/nca2008.html#KariRS08