@article{ref1,
title="Spring and autumn daylight saving time changes: studies of adjustment in sleep timings, mood, and efficiency",
journal="Ergonomics",
year="1980",
author="Monk, T. H. and Aplin, L. C.",
volume="23",
number="2",
pages="167-178",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0014-0139",
doi="",
url="http://dx.doi.org/"
}