@article{ref1,
title="Snowmobile accidents in central Wisconsin. Experience during the 1970-1971 and 1971-1972 seasons",
journal="Wisconsin medical journal",
year="1973",
author="Wenzel, F. J. and Peters, R. A. and Hintz, C. S. and Olsen, T. W.",
volume="72",
number="2",
pages="89-94",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0043-6542",
doi="",
url="http://dx.doi.org/"
}