@article{ref1,
title="Modification of the classroom behavior of a disadvantaged kindergarten boy by social reinforcement and isolation",
journal="Journal of experimental child psychology",
year="1969",
author="Sibley, S. A. and Abbott, M. S. and Cooper, B. P.",
volume="7",
number="2",
pages="203-219",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-0965",
doi="",
url="http://dx.doi.org/"
}