@article{ref1,
title="Human and epidemiologic aspects of USAF mid-air collisions, 1 Jan 1959 to 31 Dec 1968",
journal="Aerospace medicine",
year="1970",
author="Ferrari, V. J. Jr and Zeller, A. F.",
volume="41",
number="3",
pages="313-317",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}