1. Tool Steels;Geller,1986
2. Die Steels;Poznak,1980
3. Blanking Dies Wear Resistance;Michailenko,1986
4. Electron microscopic observation on worn surface of blanking tools. Wear resistance of die tools;Maeda,1974
5. Crystallography, Röntgenography and Electron Microscopy;Umansky,1982