Walton, O. (2012) ‘Peace Building Without Using the Word “Peace”’: National NGOs’ Reputational Management Strategies During a Peace-to-War Transition in Sri Lanka’, Critical Asian Studies, 44:3, 363–390
Walton, O. (2012) ‘Between War and the Liberal Peace: The Politics of NGO Peacebuilding in Sri Lanka’, International Peacekeeping, Vol. 20, No.1.
Goodhand, J. and Walton, O. (2009) ‘The Limits of Liberal Peacebuilding: international engagement in the Sri Lankan peace process’, Journal of Intervention and Statebuilding, 3: 3, pp. 302-323
Walton, O. (2008) ‘Conflict, peacebuilding and NGO Legitimacy: National NGOs in Sri Lanka’, Journal of Conflict, Development and Security, Volume 8, Issue 1 April 2008, pp. 133-167
Goodhand, J. and Walton, O. (2011) 'Public vs. Private Power: NGOs and International Security' in B. McKercher (ed.) The Routledge Handbook of Diplomacy and Statecraft, Routledge, New York.
Walton, O. with Saravanamuttu, P. (2011) ‘In the Balance: Civil society and the peace process 2002-2008’ in J. Goodhand, B. Korf & J. Spencer (eds.) Conflict and Peacebuilding in Sri Lanka: Caught in the Peace Trap?, Routledge, London
Walton, O. (2011) 'Aid, Peacebuilding and the Resurgence of War: Buying Time in Sri Lanka', Commonwealth and Comparative Politics, Vol. 49, No. 4, pp. 547-548
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Conference Papers and presentations
Walton, O. (2011) ''Everything is Politics': Understanding the Political Dimensions of NGO Legitimacy in Conflict-Affected Regions (Sri Lanka, Nepal and the Palestinian Territories), Charities and Legitimacy Workshop, Bogazici University, Istanbul.
Walton, O. (2011) 'Military Victor in Sri Lanka: Reflecting on Contemporary Trends in Conflict Resolution and Civil War Termination', New Perspectives on Conflict and Security Conference, University of Birmingham
Walton, O. (2010) '‘Peacebuilding without using the word peace: NGOs' strategies of reputational management during the peace to war transition in Sri Lanka’, Development Studies Seminar Series, SOAS, University of London
Walton, O. (2009) ‘”They are not engaging in politics according to our criteria”. NGO legitimacy, politics and peacebuilding in Sri Lanka 2006-7’, paper presented at BASAS Annual Conference, University of Edinburgh
Walton, O. (2008) ‘”Peacebuilding without using the word peace”: National NGOs and reputational crisis management’, paper presented at workshop on ‘Disaster, Aid and Conflict: Sri Lanka in the context of War and Post-Tsunami Aid’ workshop, University of Berne
Goodhand, J. and Walton, O. (2009) ‘Boundary Politics and (il)liberal peacebuilding’, presentation at LSE Civil Society Seminar Series
Goodhand, J. and Walton, O. (2008) ‘The Limits of Liberal Peacebuilding? International engagement in the Sri Lankan peace process’, paper presented at the BASAS Annual Conference, University of Leicester
Goodhand, J. and Walton, O. (2007) 'International Dimensions of the conflict in Sri Lanka', Paper presented at the CJPD Seminar, Luzern, Switzerland