Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MATSUNO Hidetoshi and MURAI Takashi and ISHII Toshio and SAKURAI Eiji and KAWASHIMA Hitoshi and MURAKAMI Katsuhiko,Technologies for Producing the Ultra Low Carbon and Nitrogen Steel in RH Degasser,Tetsu-to-Hagane,00211575,The Iron and Steel Institute of Japan,1999,85,3,216-220,https://cir.nii.ac.jp/crid/1390001205183479808,https://doi.org/10.2355/tetsutohagane1955.85.3_216