@article{ref1,
title="Some notes on the psychological analysis of the pilot's task",
journal="Aeromedica acta",
year="1957",
author="Fokkema, S. D.",
volume="",
number="Spec Edition",
pages="227-233",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0568-0549",
doi="",
url="http://dx.doi.org/"
}