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) Otto Steinfeld,Über die Quasiideale von Halbgruppen,Publicationes Mathematicae Debrecen,0033-3883,University of Debrecen/ Debreceni Egyetem,2022-07-01,4,3-4,262-275,https://cir.nii.ac.jp/crid/1360016866456979456,https://doi.org/10.5486/pmd.1956.4.3-4.23