1. Anderson, Alison. 1993. Source–Media Relations: The Production of the Environmental Agenda. In The Mass Media and Environmental Issues, ed. A. Hansen, 51–68. Leicester: Leicester University Press.
2. ———. 2003. Environmental Activism and the News Media. In News, Public Relations and Power, ed. Simon Cottle, 117–132. London: Sage.
3. Bauer, Martin W. 2007. Classical Content Analysis: A Review. In Qualitative Researching with Text, Image and Sound, ed. Martin Bauer and George Gaskell, 131–151. London: Sage.
4. Birks, Jen, and John Downey. 2015. Pay Your Tax!’ How Tax Avoidance Became a Prominent Issue in the Public Sphere in the UK. In Media, Margins and Civic Agency, ed. Einar Thorsen, Daniel Jackson, Heather Savigny, and Jenny Alexander, 166–181. London: Palgrave Macmillan.
5. Boyce, George. 1978. The Fourth Estate: The Reappraisal of a Concept. In Newspaper History: From the 17th Century to the Present Day, ed. George Boyce, James Curran, and Pauline Wingate, 19–40. London: Constable and Company Ltd.