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
"Holzsager, Richard",H-spaces of category [less than or equal to] 2,,"Department of Mathematics, University of Maryland",1969,Technical report,,,,https://cir.nii.ac.jp/crid/1130282269737316224