1. The curse of Berlin: Africa's security dilemmas;Internationale Politik und Gesellschaft,2005
2. Africaportal
. (2018). Part II: Who wants what? Breaking down the EU and ACP group's positions in the latest CPA negotiations. Retrieved from https://www.africaportal.org/features/part-ii-who-wants-what-breaking-down-eu-and-acp-groups-positions-latest-cpa-negotiations/
3. European union foreign policy: A historical overview,2010
4. The post-Washington consensus: Development after the crisis;Foreign Affairs,2011
5. Restructuring North-South relations: ACP-EU development co-operation in a liberal international order;Review of African Political Economy,2000