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) FUKUSHIMA T.,A study on optimization of cooling system of PWM power converter of Shinkansen high-speed train,"Stech03, 8",,,2003,,,,https://cir.nii.ac.jp/crid/1572261551276359680,