@article{ref1,
title="The role of sleep deprivation research in human factors",
journal="Human factors",
year="1970",
author="Townsend, R. E. and Naitoh, P.",
volume="12",
number="6",
pages="575-585",
abstract="Abstract unavailable.",
language="",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}