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 "Gulliksen, Tor H.",Massey operations and the Poincaré series of certain local rings,,"Matematisk institutt, Universitetet i Oslo",1970,Preprint series,,,,https://cir.nii.ac.jp/crid/1130290293556435464