@misc{Holzmann_Robert_Old-age_2005,
 author={Holzmann, Robert},
 address={Washington},
 howpublished={online},
 year={2005},
 publisher={World Bank},
 title={Old-age income support in the 21st century: an international perspective on pension systems and reform},
 keywords={ludzie starzy, ubezpieczenia społeczne, system emerytalno-rentowy, ekonomia},
}