@article{ref1,
title="Doing, refraining, and the strenuousness of morality",
journal="American philosophical quarterly",
year="1977",
author="Morillo, Carolyn R.",
volume="14",
number="1",
pages="29-39",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-0481",
doi="",
url="http://dx.doi.org/"
}