@article{ref1,
title="Fatigue and hours of service of interstate truck drivers (II): Psychomotor reactions",
journal="Public health bulletin (Washington, DC)",
year="1941",
author="Wulfeck, Wallace H.",
volume="1941",
number="265",
pages="135-177",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1048-6348",
doi="",
url="http://dx.doi.org/"
}