@article{ref1,
title="Age, experience and aircraft accidents",
journal="Aerospace medicine",
year="1959",
author="Zeller, A. F.",
volume="30",
number="",
pages="736-750",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}