Doyle, N., Hughes, G., and Wadensjo, E. (2006). Freedom of Movement for Workers from Central and Eastern Europe: Experiences in Ireland and Sweden, Stockholm: Swedish Institute for European Policy Studies (Sieps), https://www.esri.ie/publications/freedom-of-movement-for-workers-from-central-and-eastern-europe-experiences-in-ireland-and-sweden-sieps-report-no-5