@article{ref1,
title="Studies in physical exertion, II: individual and group reaction time in football charging",
journal="Research quarterly. American Physical Education Association",
year="1931",
author="Miles, W. R.",
volume="2",
number="3",
pages="5-13",
abstract="KEYWORDS: American football<p />",
language="",
issn="2326-7402",
doi="10.1080/23267402.1931.10625036",
url="http://dx.doi.org/10.1080/23267402.1931.10625036"
}