@article{ref1,
title="Purpose of medical surveillance of sport activities in the army",
journal="Lekarz Wojskowy",
year="1950",
author="Jasienski, J.",
volume="26",
number="1",
pages="77-84",
abstract="<p>[Abstract unavailable]</p><p>Language: un</p>",
language="un",
issn="0024-0745",
doi="",
url="http://dx.doi.org/"
}