Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Okamoto Masazo and Naito Takeshi,On a PH Type Stainless Steel Bearing Both High Nitrogen and High Silicon,Journal of the Japan Institute of Metals and Materials,00214876,The Japan Institute of Metals and Materials,1963,27,11,519-524,https://cir.nii.ac.jp/crid/1390282681458609408,https://doi.org/10.2320/jinstmet1952.27.11_519