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2. ?U.S. Market Outlet for Vinyl Windows?, Conoco Chemicals Company, June 1982.
3. ?Cadmium Stabilizers in PVC Window Frames?Experience Gained in Production and Service?, Fourth Internat. Cadmium Conf., Munich, Germany, 1-4 March, 1983.
4. ?Structure?Performance Relationships in Organotin Mercaptide Stabilizers?, Third International Symposium on Polyvinyl Chloride, Cleveland, Ohio, August 11-15, 1980.