@article{ref1,
title="High altitude-high velocity flying with reference to the human factors. IV. Opening shock of parachute descents",
journal="Journal of aviation medicine",
year="1953",
author="Webster, A. P.",
volume="24",
number="3",
pages="189-199",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0095-991X",
doi="",
url="http://dx.doi.org/"
}