1. The Economics of the Welfare State;Barr,1993
2. Assessment of Possible Migration Pressure and Its Labour Market Impact Following EU Enlargement to Central and East Europe;Bauer,1999
3. Migration und nationaler Wohlfahrtsstaat;Bommes,1999
4. Welfare and Immigration: Challenging the Borders of the Welfare State;Bommes,2000
5. Preface;Boeri,2002