@article{ref1,
title="Emergence and maintenance of stereotypy and self-injury",
journal="American journal on mental retardation",
year="1991",
author="Guess, Doug and Carr, Edward",
volume="96",
number="3",
pages="299-319",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0895-8017",
doi="",
url="http://dx.doi.org/"
}