@article{ref1,
title="An Innovative and Unconventional Approach to Program Evaluation in the Field of Substance Abuse Prevention: A Threshold-Gating Approach Using Single System Evaluation Designs",
journal="Journal of community psychology",
year="1994",
author="Kim, Seon-Young and Crutchfield, C and Williams, C. and Hepler, N",
volume="",
number="",
pages="61-78",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0090-4392",
doi="",
url="http://dx.doi.org/"
}