1. Bouza García, L. 2012. “The role of specialised groups in the debate about the European constitution”. Aberdeen, UK: Robert Gordon University. PhD thesis
2. Buth, V. Professionalisation of NGOs: Friend or foe of grassroots representation? Paper presented at the 6th ECPR General Conference. Reykjavik, Iceland.
3. de Clerck-Sachsse, J. The emergence of the European Citizens' Initiative in the European Convention. Paper presented at the conference The European Citizens Initiative – A First Assessment. College of Europe Bruges, Belgium.