@article{ref1,
title="Killing and letting die: what is the moral difference?",
journal="New scholasticism",
year="1980",
author="Lombardi, Joseph L.",
volume="54",
number="2",
pages="200-212",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-6621",
doi="",
url="http://dx.doi.org/"
}