Hajo Boomgaarden
Elisabeth Noelle-Neumann (1977) "Turbulences in the Climate of Opinion: Methodological Applications of the Spiral of Silence Theory" Public Opinion Quarterly, 41(2):143-158.

Guy Melamed 
Perceived Support for One’s Opinions and Willingness to Speak Out (Meta-Analysis of Spiral of Silence)

Elizabeth Koch
To Entertain, Inform and Educate: Still the Role of Public Television  (by Christina Holz-Bacha and Pippa Norris)

Ania Piekut
Understanding Political Communications from Virtuous Circle (by Pippa Norris)

Joris Marseille and Noam Erlich
Mass media effects: Mobilisation or Media Malaise? By Kenneth Newton