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) Iacob Alina,GORENSTEIN FLAT PREENVELOPES,Osaka Journal of Mathematics,0030-6126,"Osaka University and Osaka City University, Departments of Mathematics",2015-10,52,4,895-903,https://cir.nii.ac.jp/crid/1390572174764000384,https://doi.org/10.18910/57638