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
"Parry, William",Metric classification of ergodic nilflows and unipotent affines,,"Department of Mathematics, University of Maryland",1970,Technical report,,,,https://cir.nii.ac.jp/crid/1130282270876676224