@article{ref1,
title="Hazards of military parachuting",
journal="Military medicine",
year="1965",
author="Kiel, F. W.",
volume="130",
number="",
pages="512-521",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0026-4075",
doi="",
url="http://dx.doi.org/"
}