@article{ref1,
title="Acute violent situations. Violence in psychiatric hospitals",
journal="Tijdschrift voor Ziekenverpleging",
year="1989",
author="Betgem, P.",
volume="43",
number="16",
pages="515-518",
abstract="<p>[Abstract unavailable]</p> <p>Language: nl</p>",
language="nl",
issn="0303-6456",
doi="",
url="http://dx.doi.org/"
}