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) A.M. Polyakov,Interaction of goldstone particles in two dimensions. Applications to ferromagnets and massive Yang-Mills fields,Physics Letters B,0370-2693,Elsevier BV,1975-10,59,1,79-81,https://cir.nii.ac.jp/crid/1362262943645147008,https://doi.org/10.1016/0370-2693(75)90161-6