@article{ref1,
title="Hygienic substantiation of active development of schoolchildren by physical training",
journal="Gigiena i Sanitariia",
year="1991",
author="Sukharev, A. G. and Fokina, N. S. and Meĭbaliev, M. T.",
volume="",
number="1",
pages="38-41",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0016-9900",
doi="",
url="http://dx.doi.org/"
}