Eckstein, Harry , & Gurr, Ted. (1975). Patterns of authority: A structural basis for political inquiry. New York: John Wiley.
2.
Esty, Daniel , Goldstone, Jack A., Gurr, Ted Robert, Harff, Barbara, Levy, Marc, Dabelko, Geoffrey D., Surko, Pamela T., & Unger, Alan N. (1998). State failure task force report. McLean, VA: Science Applications International Corporation.
3.
Gurr, Ted R. (1974). Persistence and change in political systems, 1800-1971. American Political Science Review, 68, 1482-1504.
4.
Gurr, Ted R. (2000). Peoples versus states. Washington, DC: U.S. Institute of Peace Press.
5.
Lichbach, Mark . (1984). Regime change and the coherence of European governments. Denver, CO: Graduate School of International Studies.
6.
Marshall, Monty, G. (1999). Third world war. Boulder, CO: Rowman & Littlefield.
7.
Marshall, Monty G. , & Jaggers, Keith. (2000). Polity IV project: Political regime characteristics and transitions, 1800-1999. Unpublished manuscript, University of Maryland, Center for International Development and Conflict Management.
8.
McLaughlin, Sara , Gates, Scott, Hegre, Håvard, Gissinger, Ranveig, & Gleditsch, Nils Petter. (1998). Timing the changes in political structures. Journal of Conflict Resolution, 42, 231-242.
9.
Zakaria, Fareed . (1997). The rise of illiberal democracy. Foreign Affairs, 76, 22-43.