5[4]Russell King.Mass Migration in Europe:the Legacy and the future[M].Be I have Press,1993.
6[5]Kay Hailbronner.Immigration and Asylum Law and Policy of the European[M].Union",Martinus NijhoffLtd,2000.
7[6]Emek M.and Donald J.Immigration into Western Societies Problems and Policies"[M].Biddles Ltd,1997.
8[7]Kay Hailbronner,David A.Martin,and Hiroshi motomura."Immigration Admissions:the Search for Workable Policies in Germany and the United States"[M].Berghahn Press,1997.
9[8]Robert Miles and Dielrich Thraanhardt Migration and European integration:the Dynamics of Inclusion and Exclusion[M].Associated university Press,1995.
10[9]Wager Pries.migration and Transnational Social Spaces[M].Ashgate,1999.
