@inbook{Orzack2003,
author = {Orzack, S.},
title= {How and why do aging and life span evolve?},
year = {2003},
editor = {Carey, J.R.},
editor = {Tuljapurkar, S.},
booktitle = {Life Span: Evolutionary, Ecological, and Demographic Perspectives},
address = {New York},
publisher = {Population Council: Supplement to Population and Development Review},
}