@article{ref1,
title="On killing and letting die",
journal="New scholasticism",
year="1977",
author="Boyle, Joseph M.",
volume="51",
number="4",
pages="433-452",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-6621",
doi="",
url="http://dx.doi.org/"
}