1. Abella M (2003) Driving forces in Asian migration, in world migration report 2003. International Organization for Migration, Geneva
2. Abella M (2000) Migration and employment of undocumented workers: do sanctions and amnesties work? In: Cinar D, Gächter A, Waldrauch H (eds) Irregular migration: dynamics. Impact, Policy Options, Vienna, European Centre Vienna, pp 205–215
3. Bales K (1999) Disposable People: New Slavery in the Global Economy, Berkeley: University of California Press
4. Bandyopadhyay S (2006) Illegal immigration and second best import tariffs. Rev Int Econ 14(1):93–103
5. Bandyopadhyay S, Bandyopadhyay SC (1998) Illegal immigration—a supply side analysis. J Dev Econ 57(2):343–360