@article{ref1,
title="Helplessness and hopelessness among the institutionalized aged: an experiment",
journal="Health and social work",
year="1979",
author="Mercer, S. and Kane, R. A.",
volume="4",
number="1",
pages="91-116",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0360-7283",
doi="",
url="http://dx.doi.org/"
}