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
"Piene, Ragni",Cuspidal projections of space curves,,"Universitetet i Oslo, Matematisk institutt",1980,Preprint series,,8255304134,,https://cir.nii.ac.jp/crid/1130282271366324992