Hegre, Håvard, 2004. The Limits of the Liberal Peace. A dissertation for the degree of Dr. Philos, Department of Political Science, University of Oslo.
Collier, Paul; Elliott, Lani; Hegre, Håvard; Hoeffler, Anke; Reynal-Querol, Marta; & Sambanis, Nicholas (2003). Breaking the Conflict Trap: Civil War and Development Policy. Washington, DC: World Bank and Oxford University Press.
Håvard Hegre 