1. Börsch-Supan, A. H. and Wilke C. B., The German Public Pension System: How It Will Become an NDC System Look-Alike, u: R. Holzmann and E. Palmer eds. Pension Reform: Issues and prospects for non-financial defined contribution (NDC) schemes, World Bank, 2006, Washington, D. C.;
2. Pfeifer, M., Comparing unemployment protection and social assistance in 14 European countries. Four worlds of protection for people of working age, International journal of social welfare, 21/2012.;
3. Queisser, M. and Whitehouse, E., Comparing the pension promises of 30 OECD countries, International social security Review, Vol. 59, 3/2006.;
4. Golubović, V. (2009) Reforme penzijskih sistema u državama sukcesorima SFRJ, Budućnost, Novi Sad.;
5. Dixon, J., A global ranking of national social security systems, International social security review, Vol. 53, 2/2000.;