著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Dlab, Vlastimil",Matrix rings as injective hulls of torsion-free tidy rings,,"Dept. of Mathematics, Carleton University",1972,Carleton mathematical series,,,,https://cir.nii.ac.jp/crid/1130282270896504704