@article{ref1,
title="Using contingent access to activities to increase accurate responding",
journal="Education and treatment of children",
year="1977",
author="Fowler, Russell E. and Thomas, Linda and Santogrossi, David A.",
volume="1",
number="1",
pages="5-8",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0748-8491",
doi="",
url="http://dx.doi.org/"
}