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
"Speck, Paul and Takács, Sarolta A.",Understanding Byzantium : studies in Byzantine historical sources,,Ashgate,2003,Variorum collected studies series,,0860786919,,https://cir.nii.ac.jp/crid/1130282273073163136