@article{ref1,
title="The dangers of gas hot-water heaters. A supplement to "scheven, a peculiar case of carbon dioxide poisoning", in no. 6 of this weekly journal",
journal="Deutsche Medizinische Wochenschrift",
year="1904",
author="Hamm, ",
volume="30",
number="",
pages="956-956",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0012-0472",
doi="",
url="http://dx.doi.org/"
}