@article{ref1,
title="Specification of required crew performance",
journal="Perceptual and motor skills",
year="1961",
author="Bamford, Harold E.",
volume="13",
number="1",
pages="33-34",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0031-5125",
doi="10.2466/pms.1961.13.1.33",
url="http://dx.doi.org/10.2466/pms.1961.13.1.33"
}