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
"Tougher, Shaun",The reign of Leo VI (886-912) : politics and people,,Brill,1997,"The medieval Mediterranean : peoples, economies and cultures, 400-1453",,9004108114,,https://cir.nii.ac.jp/crid/1130000796691936128