Bad News Sells: The Demand for News Magazines and the Tone of Their Covers - Arango-Kure, Maria and Garz, Marcel and Rott, Armin (Journal of Media Economics, 2014)
https://katalog.adlr.link/Record/ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA4MC8wODk5Nzc2NC4yMDE0Ljk2MzIzMA