@article{ref1,
title="Subjective self-evaluations of the state of operators during prolonged tracking",
journal="Kosmicheskaia Biologiia i Aviakosmicheskaia Meditsina",
year="1976",
author="Shestkov, B. P.",
volume="10",
number="4",
pages="82-84",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0321-5040",
doi="",
url="http://dx.doi.org/"
}