Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) SHIBATA Naotake and IDEMITSU Toshiaki and KAMEI Takeshi,New Adjustable Speed Control Method for Interior Permanent-Magnet Synchronous Motors Capable of Operating at High Motor Efficiency,"電気学会研究会資料. MID, 金属産業研究会",,,1998-06-19,1998,11,7-12,https://cir.nii.ac.jp/crid/1570291225347700224,