1. Does liberal democracy presuppose a cultural nation? Four arguments;Abizadeh;American Political Science Review,2002
2. Agunias , Dovelyn R. 2006 From a zero-sum to a win-win scenario? Literature review on circular migration Migration Policy Institute Policy Brief http://www.migrationpolicy.org/pubs/CircularMigrationLitReview_9.06_DAgunias.pdf
3. Agunias , Dovelyn R. Kathleen Newland 2007 Circular migration and development Migration Policy Institute Policy Brief http://www.migrationpolicy.org/pubs/MigDevPB_041807.pdf
4. Aleman-Castilla , Benjamin. 2007 The returns to temporary migration to the United States: evidence from the Mexican urban employment survey Centre for Economic Performance Discussion Paper http://cep.lse.ac.uk/pubs/download/dp0804.pdf