Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kawai Nobuyasu and Hirano Minoru and Tatsuno Tsuneo and Honma Katsuhiko,Behavior of nitrogen absorption into high speed tool steel powders.,Journal of the Japan Society of Powder and Powder Metallurgy,05328799,Japan Society of Powder and Powder Metallurgy,1987,34,1,40-44,https://cir.nii.ac.jp/crid/1390001206307927680,https://doi.org/10.2497/jjspm.34.40