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) Fujii Yasunori,S-wave ππ scattering with small scattering lengths,Progress of theoretical physics = 理論物理学の進歩,0033068X,Kyoto : Publication Office,1968-01,39,1,126-131,https://cir.nii.ac.jp/crid/1523669554684985856,https://doi.org/10.1143/ptp.39.126