@article{ref1,
title="The Function of Air-Traffic Control",
journal="Proceedings of the institute of radio engineers",
year="1947",
author="White, WD",
volume="35",
number="2",
pages="178-178",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0731-5996",
doi="",
url="http://dx.doi.org/"
}