@article{ref1,
title="Grouping of the causative factors in investigation of aircraft accidents attributed to pilot errors",
journal="Aerospace medicine",
year="1972",
author="Dudani, N. G.",
volume="43",
number="6",
pages="671-674",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}