@article{Westendorp1998,
author = {Westendorp, R.G.J. and Kirkwood, T.B.L.},
title= {Human longevity at the cost of reproductive success},
year = {1998},
doi = {10.1038/25519},
journal = {Nature},
volume = {396},
number = {6713},
pages = {743--746},
}