@article{Sanderson2007,
author = {Sanderson, W.C. and Scherbov, S.},
title= {A near electoral majority of pensioners: Prospects and policies},
year = {2007},
doi = {10.1111/j.1728-4457.2007.00184.x},
journal = {Population and Development Review},
volume = {33},
number = {3},
pages = {543--554},
}