Responding to Terrorism using Ethical Means: The Propaganda Index - Tilley, Elspeth (Communication Research Reports, 2005)
https://katalog.adlr.link/Record/ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA4MC8wMDAzNjgxMDUwMDA1OTkyOA