@article{ref1,
title="Problems in achieving safe flying altitudes. (Review of foreign literature)",
journal="Voenno-Meditsinskii Zhurnal",
year="1961",
author="Agadzhanian, N. A. and Malkin, V. B.",
volume="4",
number="",
pages="62-66",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0026-9050",
doi="",
url="http://dx.doi.org/"
}