@article{ref1,
title="First aid in drowning",
journal="Krankenpflege journal",
year="1980",
author="Sefrin, P.",
volume="18",
number="9",
pages="19-22",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0174-108X",
doi="",
url="http://dx.doi.org/"
}