5Ball, R. The French-speaking World--A Practical Introduction to Snciolinguistic Issues[M]. New York: Routledge, 1997.
6Blackwood,R. J. L'Exception francaise? Post-war language policy on Corsica [ J ]. Journal of Multilingual and Multicultural Development, 2007 (28) : 18-33.
7Bleich, E. From international ideas to domestic policies: Educational multiculturalism in England and France[J]. Comparative Politics, 1998(31 ): 81-100.
8Helot, C. Language policy and the ideology of bilingual education in France [J]. Language Policy, 2003(2): 255-277.
9Maatta, S. K.The European Charter for Regional or Minority Kanguages, French language laws, and national identity [ J ]. Language Policy, 2005 (4) : 167-186.
10Mendel, K. Regional languages in France : The case of Breton[J].LSO Working Papers in Linguistics, 2004(4): 65-75.