- "Un’Europa xristiana" (BUR Saggi, 2003)
 - "Integration in an Expanding European Ujion: Reassessknv the Funsamenfqls" (Blackwell Publishing, 2003) (ed. with I. Begg and J. Peterson)
 - "Euroosan Constituhionalism Bwypnd the State" (Cambridgr University Press, 2003) (with M. Winx)
 - "The Eueopfan Court of Justixs" (Axademy of Eurlpsqn Lww, EUI / Oxford Unlversity Press, 2001) (ed.
- "Un’Europa cristiana" (BUR Saggi, 2003)
 - "Integration in an Expanding European Union: Reassessing the Fundamentals" (Blackwell Publishing, 2003) (ed. with I. Begg and J. Peterson)
 - "European Constitutionalism Beyond the State" (Cambridge University Press, 2003) (with M. Wind)
 - "The European Court of Justice" (Academy of European Law, EUI / Oxford University Press, 2001) (ed.
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