1. A loop layout design problem for flexible manufacturing systems;Afentakis;International Journal of Flexible Manufacturing Systems,1989
2. A loop material flow system design for automated guided vehicles;Asef-Vaziri;International Journal of Flexible Manufacturing Systems,2001
3. Asef-Vaziri, A., Hall, N.G., George, R., 2003. The importance of empty vehicle travel in circular flow path design. Working Paper. Department of Systems and Operations Management, College of Business and Economics, California State University, Northridge, CA.
4. Loop based facility planning and material handling;Asef-Vaziri;European Journal of Operational Research,2005
5. Exact and heuristic procedures for the material handling circular flow path design problem;Asef-Vaziri;European Journal of Operational Research,2007