@article{ref1,
title="Human factors and artificial gravity: a review",
journal="Human factors",
year="1971",
author="Ramsey, H. R.",
volume="13",
number="6",
pages="533-542",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0018-7208",
doi="",
url="http://dx.doi.org/"
}