Oliker, Leonid; Biswas, Rupak; Shan, Hongzhang & Smith, Warren. Scheduling in Heterogeneous Grid Environments: The Effects of DataMigration, article, January 1, 2004; (https://digital.library.unt.edu/ark:/67531/metadc901613/m1/1/: accessed April 19, 2019), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .