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
"Somerville, Robert","Papacy, councils and canon law in the 11th-12th centuries",,Variorum,1990,Collected studies series,,0860782603,,https://cir.nii.ac.jp/crid/1130282269517124224