著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) SEMBA T.,An H_∞ Design Method for a Multi-Rate Servo Controller and Applications to a High Density Hard Disk,Proc. of the 40th IEEE Conference on Desision and Control,,,2001,4693,,,https://cir.nii.ac.jp/crid/1573387449738552960,