@article{ref1,
title="Napping versus resting: effects on performance and mood",
journal="Psychophysiology",
year="1986",
author="Daiss, S. R. and Bertelson, A. D. and Benjamin, L. T.",
volume="23",
number="1",
pages="82-88",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0048-5772",
doi="",
url="http://dx.doi.org/"
}