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
"Skre, Dagfinn",Rulership in 1st to 14th century Scandinavia : royal graves and sites at avaldsnes and beyond,,De Gruyter,2020,Ergänzungsbände zum Reallexikon der germanischen Altertumskunde,,9783110425796,,https://cir.nii.ac.jp/crid/1130003901113371904