@article{ref1,
title="Physical conditioning versus +Gz tolerance",
journal="Aerospace medicine",
year="1966",
author="Cooper, K. H. and Leverett, S.",
volume="37",
number="5",
pages="462-465",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-9402",
doi="",
url="http://dx.doi.org/"
}