@article{ref1,
title="Effects on sustained performance of 48 hours of continuous work and sleep loss",
journal="Human factors",
year="1974",
author="Alluisi, Earl A. and Brown, B. R. and Morgan, B. B.",
volume="16",
number="4",
pages="406-414",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}