Social Security, Demographics, and Risk [electronic resource] /
by Christoph Borgmann.
- Berlin, Heidelberg : Springer Berlin Heidelberg, 2005.
- digital.
- Population Economics, 1431-6978 .
- Population Economics, .
9783540266976
10.1007/b137963 doi
Economics. Population. Finance. Social policy. Economics/Management Science. Population Economics. Public Finance & Economics. Social Policy.