@article{ref1,
title="Sociological and medical problems of the aged in the Kosice district",
journal="Ceskoslovenská Epidemiologie, Mikrobiologie, Imunologie",
year="1973",
author="Bacová, J.",
volume="21",
number="3",
pages="131-136",
abstract="<p>[Abstract unavailable]</p><p>Language: sk</p>",
language="sk",
issn="0009-0522",
doi="",
url="http://dx.doi.org/"
}