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) LONGAINI C. and PORTALUPPI F. and ARSLAN E. and PEDRIELLI F.,The Fast Fourier Transform in the Analysis of the Normal Phonocardiogram,Japanese Heart Journal,00214868,International Heart Journal刊行会,1979,20,3,333-339,https://cir.nii.ac.jp/crid/1390282680015660928,https://doi.org/10.1536/ihj.20.333