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
"Böhmer, Johann Friedrich and Uhlirz, Mathilde","Die Regesten des Kaiserreiches unter Otto III., 980(983-1002)",,In-house reproduction,1956,Regesta Imperii,,,,https://cir.nii.ac.jp/crid/1130282273307864832