Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sumino Koji and Yamamoto Mikio,Work-hardening of Copper Foil Crystals,Journal of the Japan Institute of Metals and Materials,00214876,The Japan Institute of Metals and Materials,1962,26,8,531-537,https://cir.nii.ac.jp/crid/1390282681457579648,https://doi.org/10.2320/jinstmet1952.26.8_531