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
"Exel, Ruy and Pitts, David Ryder",Characterizing groupoid C*-algebras of non-Hausdorff étale groupoids,,Springer,2022,Lecture notes in mathematics,,9783031055126,,https://cir.nii.ac.jp/crid/1130575645279755568