1. “Rectilinear hull — efficient sets — convex hull: Relationship and algorithms”, RM. 88-23;Chhajed,1988
2. Manufacturing systems layout, station location, and flow network design;Chhajed,1989
3. Directed Steiner tree problem on a graph: Models, relaxation, and algorithms;Dror,1988
4. Potential for bi-directional guide-path for automated guided vehicle based systems;Egbelu;International Journal of Production Research,1986
5. A dual-based procedure for uncapacitated facility location;Erlenkotter;Operations Research,1978