Herwig C.H. Hofmann is Professor of European and Transnational Public Law at the University of Luxembourg. He has published numerous works in the field of EU public and EU administrative law. Gerard C. Rowe is emeritus Professor of Public Law at the Viadrina European University Frankfurt (Oder), and previously from the University of NSW, Sydney. His work is in German and EU adminstrative, environmental and anti-discrimination law. Alexander H. Türk is Professor of Law at the Dickson Poon School of Law, Kings College London. His principal research interests and publications are in the field of European Union Law, and in particular its constitutional and administrative law.