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
"Owings, James C., Jr.",A splitting theorem for simple Π[1][1] sets,,"Department of Mathematics, University of Maryland",1970,Technical report,,,,https://cir.nii.ac.jp/crid/1130282271864247808