@article{ref1,
title="Safety helmets for bike-riding children",
journal="Deutsche Medizinische Wochenschrift",
year="1994",
author="",
volume="119",
number="28-29",
pages="1021-1021",
abstract="Abstract unavailable.",
language="",
issn="0012-0472",
doi="",
url="http://dx.doi.org/"
}