@article{ref1,
title="Individual convergence of several serological characteristics in people with high physical efficiency",
journal="American educational research journal",
year="1974",
author="Marcinkowski, T. and Kostaszuk, S. and Przybylski, Z.",
volume="3",
number="3",
pages="249-251",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8312",
doi="",
url="http://dx.doi.org/"
}