Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) H. Kudo,"Discussion: “Deformation Characteristics and Ductile Fracture of 1040 Steel in Simple Upsetting of Solid Cylinders and Rings” (Kobayashi, Shiro, 1970, ASME J. Eng. Ind., 92, pp. 391–398)",Journal of Engineering for Industry,0022-0817,ASME International,1970-05-01,92,,399-399,https://cir.nii.ac.jp/crid/1870020693323522048,https://doi.org/10.1115/1.3427753