@article{ref1,
title="Determination of physical endurance in sailors during sea voyages",
journal="Voenno-Meditsinskii Zhurnal",
year="1983",
author="Bortnovskiĭ, V. N.",
volume="",
number="1",
pages="57-57",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0026-9050",
doi="",
url="http://dx.doi.org/"
}