@article{ref1,
title="Racial differences in mental growth and school achievement: a longitudinal study",
journal="Psychological reports",
year="1960",
author="Osborne, R. T.",
volume="7",
number="2",
pages="233-239",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-2941",
doi="10.2466/pr0.1960.7.2.233",
url="http://dx.doi.org/10.2466/pr0.1960.7.2.233"
}