Jianfeng Zhan Lei Wang Bibo Tu Yong Li Peng Wang Wei Zhou Dan Meng Phoenix Cloud : Consolidating Heterogeneous Workloads of Large Organizations on Cloud Computing Platforms http://arxiv.org/abs/0906.1346 2009 CoRR abs/0906.1346 db/journals/corr/corr0906.html#abs-0906-1346 informal publication