@article{ref1,
title="A study of the reduction of fatigue impact on productivity through optimal rest break scheduling",
journal="Human factors",
year="1985",
author="Janaro, R. E. and Bechtold, S. E.",
volume="27",
number="4",
pages="459-466",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}