1. Bluestone, B., & Harrison, B. (1982). The deindustrialization of America. New York: Basic Books.
2. Cappelli, P., Bassi, L., Katz, H., Knope, D., Osterman, P., & Useem, M. (1997). Change at work. New York: Oxford University Press.
3. Carnevale, A. P., Gainer, L. J., & Meltzer, A. S. (1988). Workplace basics: The essential skills employers want. San Francisco: Jossey Bass.
4. Clarke, L., & Winch, C. (2006). A European skills framework? – But what are the skills? Anglo-Saxon versus German concepts. Journal of Education and Work, 19(3), 255–269.
5. Culpepper, P. D. (1999). The future of the high skills equilibrium in Germany. Oxford Review of Economic Policy, 15(1), 43–59.