Serious Breaches of Peremptory Norms
(with Eric Wyler) Andre Nollkaemper and Ilias Plakokefalos (eds), Principles of Shared Responsibility in International Law: An Appraisal of the State of the Art, (Cambridge, Cambridge University Press, 2014), 284-311. ISBN: 9781139940009.
State Responsibility and International Crimes
(with Eric Wyler) William Schabas and Nadia Bernaz (eds), Routledge Handbook of International Criminal Law, (Oxford, Routledge, 2011), 385-406. ISBN: 978-0-415-55203-5.