@article{ref1,
title="Study of regular Army pilots for years 1920-1941",
journal="Quarterly research report. USAF School of Aviation Medicine",
year="1948",
author="Cutler, S. J. and Rafferty, J. A.",
volume="60",
number="",
pages="32-32",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="",
doi="",
url="http://dx.doi.org/"
}