@article{ref1,
title="Human factors in disorientation and flight accidents",
journal="Tidskrift i Militär Hälsovård",
year="1956",
author="Brandt, Ulf",
volume="81",
number="2",
pages="91-103",
abstract="<p>[Abstract unavailable]</p><p>Language: sv</p>",
language="sv",
issn="",
doi="",
url="http://dx.doi.org/"
}