1. Which is well documented in literature, see for example S. Collinson: Europe and International Migration, Royal Institute of International Affairs, London, New York 1993, Pinter Publ.
2. In January 2000 Germany granted citizenship to children born to foreigners (with a permanent residence status) on German territory.
3. M. Lubyova: Status of Foreign Residents and Foreign Workers in Selected Central and Eastern European Countries, in: OECD (ed.): Migration Policies and EU Enlargement: The Case of Central and Eastern Europe, Paris 2001.
4. See OECD: Combating the Illegal Employment of Foreign Workers, Paris 2000.