1. Aghion P, Blanchard OJ (1994) On the Speed of Transition in Central Europe. Discussion Papers in Economics, No. 87. Nuffield College, Oxford
2. Bauer T, Zimmermann KF (1997a) Network Migration of Ethnic Germans. International Migration Review 31: 143–149
3. Bauer T, Zimmermann KF (1997b) Looking South and East: Labour Market Implications of Migration in Europe and Developing Countries. In: Memedovic O, Kuyvenhoven A, Molle WTM (eds) Globalisation of Labour Markets: Challenges, Adjustment and Policy Response in the EU and the Less Developed Countries. Kluwer, Dordrecht
4. Becker GS (1962) Investments in Human Capital: A Theoretical Analysis. Journal of Political Economy, Supplement 70: 9–49
5. Borjas GJ (1994) The Economics of Immigration. Journal of Economic Literature 32: 1667–1717