@article{Wachter1999,
author = {Wachter, K.W.},
title= {Evolutionary demographic models for mortality plateaus},
year = {1999},
doi = {10.1073/pnas.96.18.10544},
journal = {Proceedings of the National Academy of Sciences},
volume = {96},
number = {18},
pages = {10544--10547},
}