Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Kitamoto Tatsuji and Akashi Goro,The Preparation of Ferromagnetic Powders by Sodium Borohydride Process and their Magnetic Properties,The Journal of the Institute of Television Engineers of Japan,03743470,The Institute of Image Information and Television Engineers,1965,19,1,19-23,https://cir.nii.ac.jp/crid/1390001205395779456,https://doi.org/10.3169/itej1954.19.19