The Borderlands of South Sudan: Authority and Identity in Contemporary and Historical Perspectives. New York: Palgrave Macmillan, 2013.

"Introduction" (with Lotje de Vries and Christopher Vaughan. In: The Borderlands of South Sudan: Authority and Identity in Contemporary and Historical Perspectives. New York: Palgrave Macmillan, 2013. 

"Deals and Dealings: Inconclusive Peace and Treacherous Trade along the South Sudan-Uganda Border" (with Kristof Titeca). Africa Spectrum, Volume 47, Issue 2-3, 2012. here

"They forget what they came for": Uganda's army in Sudan. Journal of Eastern African Studies, Volume 6, Issue 1, 2012. here

"Is the referendum really important?" Royal African Society. London: 2011. here

"Unabhängig, doch kein Staat? Konflikte innerhalb des Südsudan verhindern den Aufbau staatlicher Institutionen." Welt-Sichten: Dezember 2010. here

Southern Sudan at odds with itself: Dynamics of conflict and predicaments of peace (with Tim Allen et al). here
London: LSE/ Pact Sudan/ DfID, 2010.

"After Operation Lightning Thunder: Protecting communities and building peace" (with Kennedy Tumutegyereize). here
London: Conciliation Resources, 2009.

"Perilous border: Sudanese communities affected by conflict on the Sudan/ Uganda border" here
London: Conciliation Resources, November 2008. 

Violent Legacies: Insecurity in Sudan's Central and Eastern Equatoria (Working Paper 13). here
Human Security Baseline Assessment. Geneva: The Small Arms Survey, 2008.

"International involvement and incentives for peacemaking in northern Uganda." here
Accord: Powers of persuasion: incentives, sanctions and conditionality in peacemaking 19 (2008).

The Lord's Resistance Army in Sudan: A History and Overview (Working Paper 8).
Human Security Baseline Assessment. Geneva: The Small Arms Survey, 2007. here

"The Sudan Wars." In The New Encyclopaedia of Africa.
Edited by John Middleton and Joseph C.  Miller. Washington, D.C.: Charles Scribners' Sons, 2007.

"Darfur: The Long Road to Disaster (Book Review)." International Affairs 83, no. 4 (2007): 821 - 22.