@article{ref1,
title="The classification of secondary school boys for purposes of competition",
journal="Research quarterly. American Physical Education Association",
year="1936",
author="Cozens, Frederick W. and Trieb, Martin H. and Neilson, N. P.",
volume="7",
number="1",
pages="36-43",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="2326-7402",
doi="10.1080/23267402.1936.10761755",
url="http://dx.doi.org/10.1080/23267402.1936.10761755"
}