@article{ref1,
title="Work capacity dynamics of young schoolchildren in the course of the school day",
journal="Gigiena i Sanitariia",
year="1980",
author="Sapozhnikova, G. M.",
volume="",
number="2",
pages="35-38",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0016-9900",
doi="",
url="http://dx.doi.org/"
}