@article{ref1,
title="Mate selection",
journal="American sociological review",
year="1937",
author="Popenoe, Paul",
volume="2",
number="5",
pages="735-743",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0003-1224",
doi="10.2307/2083826",
url="http://dx.doi.org/10.2307/2083826"
}