@article{ref1,
title="Military pilot selection; a survey of programs in United States, Canada, Great Britain and France",
journal="Journal of aviation medicine",
year="1958",
author="Burwell, R. R. and Sells, S. B.",
volume="29",
number="11",
pages="832-841",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0095-991X",
doi="",
url="http://dx.doi.org/"
}