@article{ref1,
title="Aircraft accidents by older persons",
journal="Aerospace medicine",
year="1969",
author="Mohler, S. R. and Bedell, R. H. and Ross, A. and Veregge, E. J.",
volume="40",
number="5",
pages="554-556",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}