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
"Helberger, Natali",Controlling access to content : regulating conditional access in digital broadcasting,,Kluwer Law International,2005,Information law series,,9041123458,,https://cir.nii.ac.jp/crid/1130000795292906368