@article{Sanz2007,
author = {Sanz, I. and Velázquez, F.J.},
title= {The role of ageing in the growth of government and social welfare spending in the OECD},
year = {2007},
doi = {10.1016/j.ejpoleco.2007.01.003},
journal = {European Journal of Political Economy},
volume = {23},
number = {4},
pages = {917--931},
}