Bhaskaran Raman Sharad Agarwal Yan Chen Matthew Caesar Weidong Cui Per Johansson Kevin Lai Tal Lavian Sridhar Machiraju Zhuoqing Morley Mao George Porter Timothy Roscoe Mukund Seshadri Jimmy S. Shih Keith Sklower Lakshminarayanan Subramanian Takashi Suzuki Shelley Zhuang Anthony D. Joseph Randy H. Katz Ion Stoica The SAHARA Model for Service Composition across Multiple Providers. 1-14 2002 conf/pervasive/2002 Pervasive http://dx.doi.org/10.1007/3-540-45866-2_1 db/conf/pervasive/pervasive2002.html#RamanACCCJLLMMPRSSSSSZJKS02