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2. A CAD System for Progressive Dies;Murakami,1980
3. NC for Sheet Metal Forming Tools;Kovacs;Sheet Met. Ind.,1980
4. Analysis of growing and disappearing behavior of surface deflection in press forming of large-sized autobody panels;Ishigaki;Panels, JSAE Review,1984
5. Geometric modelling for efficient evaluation of press forming severity,;Higashi,1985