@article{ref1,
title="Circadian rhythms and the athlete",
journal="Canadian journal of sport sciences",
year="1991",
author="Shephard, R. J.",
volume="16",
number="1",
pages="5-6",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0833-1235",
doi="",
url="http://dx.doi.org/"
}