@article{ref1,
title="Criteria of death",
journal="Studium Generale",
year="1970",
author="Wawersik, J.",
volume="23",
number="4",
pages="319-330",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0039-4149",
doi="",
url="http://dx.doi.org/"
}