@article{ref1,
title="Emotional problems in relation to aging and old age",
journal="Geriatrics",
year="1971",
author="Kern, R. A.",
volume="26",
number="6",
pages="82-93",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0016-867X",
doi="",
url="http://dx.doi.org/"
}