@article{ref1,
title="Seasonal rhythm of mortality. Mortality according to age groups and seasons",
journal="Deutsche Gesundheitswesen",
year="1969",
author="Oehmisch, W.",
volume="24",
number="22",
pages="1046-1052",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0012-0219",
doi="",
url="http://dx.doi.org/"
}