@article{ref1,
title="Factor analysis of selected muscular strength and motor performance tests",
journal="Research quarterly",
year="1971",
author="Jackson, A. S.",
volume="42",
number="2",
pages="164-172",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0034-5377",
doi="",
url="http://dx.doi.org/"
}