Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Sato Tomo-o and Nishizawa Taiji and Ishiwara Jô,A Study on Hardness of Carbides in Iron and Steel,Journal of the Japan Institute of Metals and Materials,00214876,The Japan Institute of Metals and Materials,1959,23,7,403-407,https://cir.nii.ac.jp/crid/1390001206481876096,https://doi.org/10.2320/jinstmet1952.23.7_403