1. Andrén, D. (2001). Work, sickness, earnings, and early exits from the labor market: An empirical analysis using Swedish longitudinal data. Economic Studies 107. Doctoral thesis. Göteborg University.
2. Berglind, H. (1977). Förtidspension eller arbete? En studie av utveckling och regionala variationer. [Disability pension or employment? A study over time and regional variations.] In Förtidspensionering. Två forskningsrapporter. [The disability pension. Two research reports]. SOU 1977: 88.
3. Bound, J., & Burkhauser, R. V. (1999). Economic analysis of transfer programs targeted on people with disabilities. In O. Ashenfelter & D. Card (Eds.), Handbook of labor economics (Vol. 3c, pp. 3417–3528). Amsterdam: Elsevier Science.
4. Hansson-Brusewitz, U. (1992). Labour supply of elderly men. Do taxes and pension systems matter? Doctoral thesis. Uppsala University.
5. Haveman, R. H., & Wolfe, B. L. (2000). The economics of disability and disability policy. In A. J. Culyer & J. P. Newhouse (Eds.), Handbook of health economics (Vol. 1b, pp. 996–1051). Elsevier.