@article{ref1,
title="Ego strength, skin conductance, sleep deprivation, and performance",
journal="Perceptual and motor skills",
year="1970",
author="Strausbaugh, L. J. and Roessler, R.",
volume="31",
number="2",
pages="671-677",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0031-5125",
doi="",
url="http://dx.doi.org/"
}