@article{ref1,
title="Cost efficiency of the psychological selection in aviation",
journal="Aviakosmicheskaia i Ekologicheskaia Meditsina",
year="2007",
author="Pokrovskiĭ, B. L.",
volume="41",
number="1",
pages="58-59",
abstract="<p>[Abstract unavailable]</p> <p>Language: ru</p>",
language="ru",
issn="0233-528X",
doi="",
url="http://dx.doi.org/"
}