1. Baumgartner, F. R., & Jones, B. D. (2009). Agendas and instability in American politics (2nd ed.). Chicago: University of Chicago Press.
2. Boin, A., McConnell, A., & ‘t Hart, P. (2008). Governing after crisis: The politics of investigation, accountability and learning. Cambridge: Cambridge University Press.
3. Braun, D., & Busch, A. (1999). Political ideas and public policies. Cheltenham: Edward Elgar.
4. Calmes J, Zelenes J (2008) Obama vows swift action on vast stimulus program. The New York Times, 22 November.
5. Fleischer, J. (2010). Steering from the German center: More policy coordination and fewer policy initiatives. In C. Dahlström, B. G. Peters, & J. Pierre (Eds.), Steering from the center. Toronto: University of Toronto Press.