@article{ref1,
title="Physical work capacity of schoolchildren and relevant factors (review)",
journal="Gigiena i Sanitariia",
year="1990",
author="Mostovaia, L. A. and Karpovets, P. M.",
volume="",
number="4",
pages="9-13",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0016-9900",
doi="",
url="http://dx.doi.org/"
}