- Fragile States and Insecure People?: Violence, Security, and Statehood in the Twenty-First Century (Governance, Security and Development)
- Refugees, Prisoners and Camps: A Functional Analysis of the Phenomenon of Encampment
- From Westphalia to Cosmopolis?: Volume 2 - The Cosmopolitan Order.
- European Security: The Roles of Regional Organisations
- From Westphalia to Cosmopolis?: Volume 1 - The Westphalian System








