Figure 2.2: Estimated trends in anger over the course of September 11, 2001 based on 85,000 American pagers (Back, Küfner, and Egloff 2010; Pury 2011; Back, Küfner, and Egloff 2011).
September 2001 baséiert op 85.000 amerikanesche Pager (Back, Küfner, and Egloff 2010, 2011; Pury 2011) .