@article{ref1,
title="Physical Conditioning of Children",
journal="Journal of Aolescent Health Care",
year="1983",
author="Katch, VL",
volume="3",
number="4",
pages="241-246",
abstract="[Abstract unavailable]  <p>Language: en</p>",
language="en",
issn="0197-0070",
doi="",
url="http://dx.doi.org/"
}