@article{ref1,
title="A technique for instrumenting sub-gravity flights",
journal="Journal of aviation medicine",
year="1957",
author="Schack, G. J. and Simons, D. G.",
volume="28",
number="6",
pages="576-582",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0095-991X",
doi="",
url="http://dx.doi.org/"
}