@article{ref1,
title="The principle of double effect",
journal="American journal of jurisprudence",
year="1974",
author="Devine, Philip E.",
volume="19",
number="",
pages="44-60",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0065-8995",
doi="",
url="http://dx.doi.org/"
}