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)
Huang Zhaoyong,Extension closure of<i>k</i>-torsionfree modules,Communications in Algebra,0092-7872,Informa UK Limited,1999-01,27,3,1457-1464,https://cir.nii.ac.jp/crid/1360013172779634176,https://doi.org/10.1080/00927879908826506