1. Allen, J., & van der Velden, R. (Eds.) (2010). The flexible professional in the knowledge society (Forthcoming).
2. Barone, C., & Ortiz, L. (2010). Overeducation among European University Graduates, DEMOSOC Working Papers (Departament de Ciències Polítiques I Socials, Universitat Pompeu Fabra), Working Paper 2010/33.
3. Becker, G. (1980). Human capital. Chicago: University of Chicago Press.
4. Chevalier, A. (2003). Measuring overeducation. Economica, 70(279), 509–533.
5. Elias, P. (1997). ISCO-88: Concepts, methods, reliability, validity and cross national comparability, OECD occasional paper 20/1997.