@article{ref1,
title="Undisturbed sleep. A research-based change to improve safety on a secure long-term unit",
journal="AARN news letter",
year="1998",
author="Hart, H.",
volume="54",
number="1",
pages="6-7",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-0197",
doi="",
url="http://dx.doi.org/"
}