@article{ref1,
title="Gradients of physiological arousal in parachutists as a function of an approaching jump",
journal="Psychosomatic medicine",
year="1967",
author="Fenz, W. D. and Epstein, S.",
volume="29",
number="1",
pages="33-51",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-3174",
doi="",
url="http://dx.doi.org/"
}