Müller, P., Schemer, C., Wettstein, M., Schulz, A., Wirz, D. S., Engesser, S., & Wirth, W. (accepted). The Differential Effects of News Coverage on Public Opinion about Populism: Evidence from a Panel Study in four European Countries. Journal of Communication.

Schulz, A., Müller, P, Schemer, C., Wirz, D.S., Wettstein, M., & Wirth, W. (2017). Measuring Populist Attitudes on Three Dimensions. International Journal of Public Opinion Research. Online First.

Schulz, A., & Roessler, P. (2012). The Spiral of Silence and the Internet: Selection of Online Content and the Perception of the Public Opinion Climate in Computer-Mediated Communication Environments. International Journal of Public Opinion Research24(3), 346–367. doi:10.1093/ijpor/eds022 

Wirth, W., Esser, F., Wettstein, M., Engesser, S., Wirz, D., Schulz, A., Ernst, N., Büchel, F., Caramani, D., Manucci, L., Steenbergen, M., Bernhard, L., Weber, E., Hänggli, R., Dalmus, C., & Schemer, C. (2016). The Appeal of Populist Ideas, Strategies and Styles: A Theoretical Model and Research Design for Analyzing Populist Political Communication. University of Zurich: Working Paper 88 of the National Centre of Competence in Research (NCCR) on Challenges to Democracy in the 21st Century.

Schulz, A., & Roessler, P. (2013). Spiral of Silence Online. The Theory of Public Opinion and the Internet. Baden-Baden: Nomos. 

Roessler, P., & Schulz, A. (2013). Public Opinion Expression in Online Environments. In W. Donsbach, C. T. Salmon, & Y. Tsfati (Eds.), The Spiral of Silence: New Perspectives on Communication and Public Opinion (pp. 101–118). New York: Routledge.

Roessler, P., Schulz, A., & Mewes, M. (2012). Kumulation, Konsonanz und Netzwerkeffekte [Cumulation, Consonance and Network-Effects]. In O. Jandura, A. Fahr, & H.-B. Brosius (Eds.), Theorieanpassungen in der digitalen Medienwelt [Theory Adjustments in a Digital Media Environment] (pp. 85–104). Baden-Baden: Nomos.

Schulz, A. (2011). Spiral of Silence online - Virtual referencegroups and the Theory of Public Opinion. In F. Appenzeller, F. Flemming, & L. Küpper (Eds.), Citizen protests inbetween politics and media. Contributions to the 7th annual confernce of the DFPK (pp. 85–104). Berlin: Frank & Timme.