@article{ref1,
title="Nightmare",
journal="Medical technicians bulletin",
year="1953",
author="Crawford, J. B.",
volume="4",
number="6",
pages="233-236",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0543-2898",
doi="",
url="http://dx.doi.org/"
}