@article{ref1,
title="The physical working capacity of normal school children. i. california",
journal="Pediatrics",
year="1961",
author="Adams, F. H. and Linde, L. M. and Miyake, H.",
volume="28",
number="",
pages="55-64",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-4005",
doi="",
url="http://dx.doi.org/"
}