@article{ref1,
title="Acute Poisoning by Benzene Vapour",
journal="Deutsche Medizinische Wochenschrift",
year="1915",
author="Heffter, A",
volume="41",
number="",
pages="182-185",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0012-0472",
doi="",
url="http://dx.doi.org/"
}