@article{ref1,
title="Expanded theories of stereotypy and self-injurious responding: Commentary on 'Emergence and maintenance of stereotypy and self-injury'",
journal="American journal on mental retardation",
year="1991",
author="Baumeister, Alfred A.",
volume="96",
number="3",
pages="321-323",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0895-8017",
doi="",
url="http://dx.doi.org/"
}