@article{Zimmer2012,
author = {Zimmer, Z. and Martin, L.G. and Nagin, D.S. and Jones, B.L.},
title= {Modeling disability trajectories and mortality of the oldest-old in China},
year = {2012},
doi = {10.1007/s13524-011-0075-7},
journal = {Demography},
volume = {49},
number = {1},
}