@article{ref1,
title="UAS to support airport safety and operations: opportunities and challenges",
journal="Journal of unmanned vehicle systems",
year="2017",
author="Hubbard, Sarah and Pak, Andrew and Gu, Yue and Jin, Yan",
volume="6",
number="1",
pages="1-17",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="2291-3467",
doi="10.1139/juvs-2016-0020",
url="http://dx.doi.org/10.1139/juvs-2016-0020"
}