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 "Van der Walt, Johan Willem Gous",Constitutional sovereignty and social solidarity in Europe,,"Nomos,Bloomsbury",2015,Luxemburger juristische Studien = Luxembourg legal studies,,"9783848717590,9781474228411",,https://cir.nii.ac.jp/crid/1130282269014234880