1. ‘Gerd Oberleitner, Human Rights in Armed Conflict: Law, Practice, Policy (Cambridge University Press, 2015, xx + 431 pp, £109.99) ISBN 9781107087545 (hb)’, forthcoming in (2016) Human Rights Law Review
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4. ‘Norman Weiß, Kompetenzlehre internationaler Organisationen (Theory of the Powers of International Organisations)’, (2011) 8 International Organizations Law Review 279–284
5. ‘Terry D. Gill and Dieter Fleck (eds), The Handbook of the International Law of Military Operations’, (2011) 87 International Affairs 720–721
6. ‘Brian D. Lepard, Customary International Law: A New Theory with Practical Applications’, (2011) 24 Leiden Journal of International Law 531–535
7. ‘Frederik Naert, International Law Aspects of the EU’s Security and Defence Policy’, (2011) 36 European Law Review 451–453
8. ‘Siobhán Wills, Protecting Civilians: The Obligations of Peacekeepers’, (2010) 14 Journal of International Peacekeeping 213–215
9. ‘Jan Wouters, André Nollkaemper and Erika de Wet (eds), The Europeanisation of International Law: The Status of International Law in the EU and its Member States’, (2009) 56 Netherlands International Law Review 280–282
10. ‘Rosanne van Alebeek, The Immunities of States and their Officials in International Criminal Law and International Human Rights Law’, (2008) 79 British Yearbook of International Law 388–392
11. ‘Martin Trybus and Nigel D. White (eds), European Security Law’, (2008) 45 Common Market Law Review
12. ‘Martin Reichard, The EU–NATO Relationship: A Legal and Political Perspective’, (2007) 44 Common Market Law Review 1540–1542
13. ‘Tal Becker, Terrorism and the State: Rethinking the Rules of State Responsibility’, (2006) 82 International Affairs 1204–1205
14. ‘Marten Zwanenburg, Accountability for Peace Support Operations and Geert-Jan Alexander Knoops, The Prosecution and Defense of Peacekeepers Under International Criminal Law’, (2006) 17 European Journal of International Law 869–874
15. ‘Sebastian Graf von Kielmansegg, Die Verteidigungspolitik der Europäischen Union: Eine rechtliche Analyse [The Defence Policy of the European Union: A Legal Analysis]’, (2006) 11 European Foreign Affairs Review 584–586
16. ‘Vincent Kronenberger and Jan Wouters (eds), The European Union and Conflict Prevention: Policy and Legal Aspects’, (2006) 31 European Law Review 125–128
17. ‘Kirsten Schmalenbach, Die Haftung Internationaler Organisationen im Rahmen von Militäreinsätzen und Territorialverwaltungen’ (2005) 10 European Foreign Affairs Review 445–446