@article{ref1,
title="The relationship between hemoglobin concentration in the blood and physical fitness",
journal="Vojnosanitetski Pregled - Military-medical and pharmaceutical review",
year="1980",
author="Ropac, D.",
volume="37",
number="4",
pages="245-247",
abstract="<p>[Abstract unavailable]</p><p>Language: sr</p>",
language="sr",
issn="0042-8450",
doi="",
url="http://dx.doi.org/"
}