@article{ref1,
title="The relationships between chronological age, length of experience, and job performance ratings of air route traffic control specialists. AM 67-1",
journal="AM reports",
year="1967",
author="Cobb, B. B.",
volume="",
number="",
pages="1-9",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1545-1518",
doi="",
url="http://dx.doi.org/"
}