@article{Tuljapurkar2006,
author = {Tuljapurkar, S. and Horvitz, C.C.},
title= {From stage to age in variable environments: Life expectancy and survivorship},
year = {2006},
doi = {10.1890/0012-9658(2006)87[1497:FSTAIV]2.0.CO;2},
journal = {Ecology},
volume = {87},
number = {6},
pages = {1497--1509},
}