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)
VAN DER POL B.,A theory of the amplitude of free and forced triode vibrations,Radio Review,,,1920,1,,"701-710,754-762",https://cir.nii.ac.jp/crid/1573387450564694656,