@article{ref1,
title="Relaxation in sports and other exertion",
journal="Medicinski Arhiv",
year="1987",
author="Radulović, R. and Gordana, S.",
volume="41",
number="5",
pages="273-275",
abstract="<p>[Abstract unavailable]</p><p>Language: hr</p>",
language="hr",
issn="0350-199X",
doi="",
url="http://dx.doi.org/"
}