@article{ref1,
title="Psychomotor Activity and Feeblemindedness",
journal="Psychol Clin",
year="1931",
author="Selling, Lowell S.",
volume="19",
number="9",
pages="275-284",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="",
doi="",
url="http://dx.doi.org/"
}