Bejarano, Ana María, and Eduardo Pizarro Leongómez. “From” Restricted” to” Besieged”: The Changing Nature of the Limits to Democracy in Colombia.” Working Paper (Helen Kellogg Institute for International Studies). Notre Dame, Ind.: Helen Kellogg Institute for International Studies, 2002. http://www.nd.edu/~kellogg/publications/workingpapers/WPS/296.pdf.
