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 "Hill, Richard Oscar",On the geometric dimension of bundles and cohomology operations,,"Depertment of Mathematics, NorthwesternUniversity",1968,Reports from the Department of Mathematics Northwestern University,,,,https://cir.nii.ac.jp/crid/1130282271586338304