@article{ref1,
title="Race/ethnicity and relative centrality of playing positions in team sports",
journal="Exercise and sport sciences reviews",
year="1978",
author="Curtis, J. E. and Loy, J. W.",
volume="6",
number="",
pages="289-313",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-6331",
doi="",
url="http://dx.doi.org/"
}