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) Allen E. Hatcher,"A Proof of the Smale Conjecture, Diff(S 3 ) ≃O(4)",The Annals of Mathematics,0003-486X,JSTOR,1983-05,117,3,553,https://cir.nii.ac.jp/crid/1363388843490725248,https://doi.org/10.2307/2007035