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 "International Conference on Group and Semigroup Rings and Karpilovsky, Gregory","Group and semigroup rings : proceedings of the International Conference on Group and Semigroup Rings, University of the Witwatersrand, Johannesburg, South Africa, 7-13 July, 1985",,"North-Holland,Sole distributors for the U.S.A. and Canada, Elsevier Science Pub. Co.",1986,Notas de matemática,,0444700439,,https://cir.nii.ac.jp/crid/1130282270938699136