@article{ref1,
title="Prevalence and situational causes of stereotyped behaviors in blind infants and preschoolers",
journal="Journal of abnormal child psychology",
year="1991",
author="Tröster, Heinrich and Brambring, Michael and Beelmann, Andreas",
volume="19",
number="5",
pages="569-590",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0091-0627",
doi="10.1007/BF00925821",
url="http://dx.doi.org/10.1007/BF00925821"
}