@article{ref1,
title="A comparison of systematic desensitization and reinforced practice procedures in fear reduction",
journal="Behaviour research and therapy",
year="1973",
author="Hamilton, M. and Schroeder, H. E.",
volume="11",
number="4",
pages="649-652",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0005-7967",
doi="",
url="http://dx.doi.org/"
}