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)
YAMADA H.,A historical study of typewriters and typing methods : from the position of planning Japanese parallels. VII,The Physical Structure of Keyboard,,,1981,13,11,1547-1556,https://cir.nii.ac.jp/crid/1570854174112813184,