@article{ref1,
title="The age separating early deaths from late deaths",
journal="Demographic research",
year="2009",
author="Vaupel, James and Zhang, Zengxiu",
volume="20",
number="",
pages="721-730",
abstract="There is a unique threshold age separating early deaths from late deaths such that averting an early death decreases life disparity, but averting a late death increases inequality in lifespans.<p />",
language="en",
issn="1435-9871",
doi="10.4054/DemRes.2009.20.29",
url="http://dx.doi.org/10.4054/DemRes.2009.20.29"
}