@article{ref1,
title="Behavioral aspects of circadian rhythms",
journal="Proceedings of the annual meeting of the American Psychopathological Association",
year="1967",
author="Stroebel, C. F.",
volume="55",
number="",
pages="158-172",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-7389",
doi="",
url="http://dx.doi.org/"
}