@book{54033,
	author = {Hegre, Havard and Raleigh, Clionadh and World Bank},
	title = {Population size, concentration, and civil war: a geographically disaggregated analysis},
	publisher = {World Bank},
	year = {2007},
	series = {World Bank policy research working papers},
	address = {Washington, D.C.}
}