@article{ref1,
title="The unit costs of faa air traffic control services",
journal="Journal of the transportation research forum",
year="1987",
author="Golaszewski, R.",
volume="28",
number="1",
pages="13-20",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1046-1469",
doi="",
url="http://dx.doi.org/"
}