@article{Vaupel1985,
author = {Vaupel, J.W. and Yashin, A.I.},
title= {Heterogeneity's ruses: some surprising effects of selection on population dynamics},
year = {1985},
doi = {10.2307/2683925},
journal = {American Statistician},
volume = {39},
number = {3},
pages = {176--185},
}