@article{ref1,
title="Strategies for Comparing Multiple-Site Evaluations Under Nonequivalent Design Conditions",
journal="Journal of community psychology",
year="1994",
author="Hansen, W. B. and Kaftarian, SJ",
volume="",
number="",
pages="170-187",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0090-4392",
doi="",
url="http://dx.doi.org/"
}