Koen Slootmaeckers is a researcher at the School of Politics and International Relations Queen Mary University of London, UK, and Free Research Associate at LINES (Leuven International and European Studies) at the University of Leuven (KU Leuven), Belgium.  Heleen Touquet is Part-Time Professor of International Relations at the University of Leuven (KU Leuven), Belgium. Her work on social movements and mobilisation in the Western Balkans has been published in, among others, Nationalism and Ethnic Politics, Europa-Asia Studies, and Nationalities Papers. Peter Vermeersch is Professor of Politics at the University of Leuven (KU Leuven), Belgium, where he is Research Co-ordinator at LINES (Leuven International and European Studies). Previously, he published among others The Romani Movement: Minority Politics and Ethnic Mobilization in Contemporary Central Europe (2006).