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2. Survey of slow and fast blanking of metals at ambient and high temperatures;Johnson,1967
3. Piercing and hole-flanging of sheet metals: a survey;Johnson;Memoires Scientifiques Revue Netallurgie,1980
4. On cropping and related process;Atkins;Int. J. Mech. Sci.,1980
5. On the mechanics of guillotining ductile metals;Atkins;J. Mater. Proc. Tech.,1990