1. Azmat, G.; Guell, M.; Manning, A. 2004. ‘Gender gaps in unemployment rates in OECD countries’, Working Paper for the Centre for Economic Performance, LSE, London.
2. OECD Social, Employment and Migration Working Papers, no. 35;A Bassanini,2006
3. NBER Working Paper No. 8526;G Bertola,2001
4. Blanchflower, D.G.; Oswald, A.J.; Sanfey, P. 1996. ‘Wages, profits and rent-sharing’, Quarterly Journal of Economics, vol. 111, no. 1, pp. 227–51.
5. Bosch, G.; Kalina, T. 2008. ‘Low-wage work in Germany: an overview’, in Bosch, G.; Weinkopf, C. (eds) Low-Wage Work in Germany (New York: Russell Sage Foundation), pp. 19–112.