MinChao Wang Xing Wu Wu Zhang FuQiang Ding Jun Zhou GuoCai Pei A Conceptual Platform of SLA in Cloud Computing. 1131-1135 2011 DASC http://doi.ieeecomputersociety.org/10.1109/DASC.2011.184 conf/dasc/2011 db/conf/dasc/dasc2011.html#WangWZDZP11