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) Mattia Brescia and Maria Ferrara and Marco Trombetti,The structure of metahamiltonian groups,Japanese journal of mathematics. 3rd series,,Tokyo : Springer Japan,2023,18,1,1-65,https://cir.nii.ac.jp/crid/1520577530436826240,