1. Remanufacturing Symposium Proceedings;APICS,1994
2. A&D/Remanufacturing Joint Symposium Proceedings;APICS,1995
3. A two-level network for recycling sand: A case study;Barros,1996
4. Optimal obnoxious paths on a network: Transportation of hazardous materials;Batta;Operations Research,1988
5. How Europe's companies reposition to recycle;Cairncross;Harvard Business Review, March–April,1992