@article{ref1,
title="Weightlessness can be confusing",
journal="Science",
year="1967",
author="Lilley, F. E.",
volume="156",
number="780",
pages="1310-1311",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0036-8075",
doi="",
url="http://dx.doi.org/"
}