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• Katta G. Murty
  Department of Industrial and Operations Engineering, University of Michigan, Ann Arbor, MI 48109-2117, USA; SE Department, King Fahd University of Petroleum and Minerals, Dhahran-31261, Saudi Arabia

• Mohammad R. Oskoorouchi
  Department of Information Systems and Operations Management, College of Business Administration, California State University San Marcos, San Marcos, CA 92096-0001, USA