@article{ref1,
title="Use of path models to study a precareer air traffic control training program",
journal="Aviation, space, and environmental medicine",
year="1978",
author="Boone, J. O.",
volume="49",
number="10",
pages="1203-1211",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0095-6562",
doi="",
url="http://dx.doi.org/"
}