@article{Schoeni2008,
author = {Schoeni, R.F. and Freedman, V.A. and Martin, L.G.},
title= {Why is late-life disability declining?},
year = {2008},
doi = {10.1111/j.1468-0009.2007.00513.x},
journal = {The Milbank Quarterly},
volume = {86},
number = {1},
pages = {47--89},
}