@article{ref1,
title="Leverage and evaluation: Beating plowshares into swords",
journal="Evaluation and program planning",
year="1980",
author="Neigher, William D.",
volume="3",
number="3",
pages="191-194",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0149-7189",
doi="10.1016/0149-7189(80)90023-3",
url="http://dx.doi.org/10.1016/0149-7189(80)90023-3"
}