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
"Vasiliev, Alexander Alexandrovich",The Russian attack on Constantinople in 860,,The Mediaeval Academy of America,1946,Mediaeval Academy of America publication,,,,https://cir.nii.ac.jp/crid/1130282269887459200