@article{ref1,
title="A comparison of some psychological and psychophysiological characteristics in parachutists prior to and after jump",
journal="Activitas nervosa superior",
year="1967",
author="Heinzl, Z. and Janousková, N. and Stanka, J.",
volume="9",
number="2",
pages="179-180",
abstract="<p>[Abstract unavailable]</p> <p>Language: cs</p>",
language="cs",
issn="0001-7604",
doi="",
url="http://dx.doi.org/"
}