@article{ref1,
title="Study of simulated airline pilot incapacitation: phase II. Subtle or partial loss of function",
journal="Aerospace medicine",
year="1971",
author="Harper, C. R. and Kidera, G. J. and Cullen, J. F.",
volume="42",
number="9",
pages="946-948",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}