@article{ref1,
title="Space begins at 50,000 feet",
journal="United States Armed Forces medical journal",
year="1959",
author="Downey, V. M.",
volume="10",
number="",
pages="1287-1291",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0566-0777",
doi="",
url="http://dx.doi.org/"
}