discrete optimization the design of reverse distribution networks models and solution procedures vaidyanathan jayaraman a raymond patterson b erik rolland c 1 department management school business administration university miami coral gables fl 33124 usa accounting & mis alberta edmonton ab canada t6e 4s8 gary anderson graduate california riverside ca 95251 received 22 march 2000 accepted 9 august 2001 abstract or ofproduct return ows induced by various formsof reuse productsand materials has growing attention throughout this decade in paper we discuss propose mathematical programming model for version problem due to complexity proposed introduce heuristic methodology complements concentration procedure where sub problems with reduced sets decision variables are iteratively solved optimality based on solutions from nal set potential facility sites is con structed then expanded greedy fashion
