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 "Călugăreanu, Grigore and Hamburg, Peter",Exercises in basic ring theory,,Kluwer Academic Publishers,1998,Kluwer texts in the mathematical sciences,,0792349180,,https://cir.nii.ac.jp/crid/1130000793700721280