@article{ref1,
title="Some Personality Characteristics of Skydivers",
journal="Life threatening behavior",
year="1973",
author="Delk, JL",
volume="3",
number="1",
pages="51-57",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0047-4592",
doi="",
url="http://dx.doi.org/"
}