@article{ref1,
title="Comparison between football athletes and nonathletes on personality",
journal="Research quarterly",
year="1969",
author="Berger, R. A. and Littlefield, D. H.",
volume="40",
number="4",
pages="633-635",
abstract="<p>[Abstract unavailable]  Keywords: American football </p> <p>Language: en</p>",
language="en",
issn="0034-5377",
doi="",
url="http://dx.doi.org/"
}