Dehlaghi-Ghadim, Alireza, Reza Entezari-Maleki, and Ali Movaghar. 2018. “Cost-Efficient Scheduling for Deadline Constrained Grid Workflows”. Computing and Informatics 37 (4):838-64. http://147.213.75.17/ojs/index.php/cai/article/view/2018_4_838.