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 "Gregor, Miloš and Mlejnková, Petra",Challenging online propaganda and disinformation in the 21st century,,Palgrave Macmillan,2021,Political campaigning and communication,,9783030586232,,https://cir.nii.ac.jp/crid/1130289442158766344