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Can fiscal policy spur fertility?
Kudła, Janusz, (2018)
Fiscal sustainability and demographics : should we save or work more?
Andersen, Torben M., (2012)
Over-aging : are present human populations too old?
Stelter, Robert, (2014)
Determinants of public indebtedness in European Union countries
The Economic Aspects of Family Taxation
Kudła, Janusz, (2002)