bibliographic entry 2712355 [be/2712355]
https://w3id.org/oc/corpus/be/2712355

is a

• bibliographic reference

content

• United Nations World population ageing 2009 ESA/P/WP/212 United Nations, New York, NY, USA, 2009, http://www.un.org/esa/population/publications/WPA2009/WPA2009_WorkingPaper.pdf

references

• https://w3id.org/oc/corpus/br/2945707