@article{ref1,
title="IQ, socioeconomic status, and short-term memory",
journal="Journal of educational psychology",
year="1972",
author="Orn, D. E. and Das, J. P.",
volume="63",
number="4",
pages="327-333",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-0663",
doi="",
url="http://dx.doi.org/"
}