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) Yasser Ibrahim and Mohamed Yousif,Rings whose injective hulls are dual square free,Communications in Algebra,0092-7872,Informa UK Limited,2019-10-01,48,3,1011-1021,https://cir.nii.ac.jp/crid/1360579820113010688,https://doi.org/10.1080/00927872.2019.1670198