@article{ref1,
title="Response habituation in unconscious patients",
journal="Neuropsychologia",
year="1972",
author="Gulbrandsen, G. B. and Kristiansen, K. and Ursin, H.",
volume="10",
number="3",
pages="313-320",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-3932",
doi="",
url="http://dx.doi.org/"
}