@article{ref1,
title="Streetcars in urban environment pose a great risk of accidents",
journal="Lakartidningen",
year="1995",
author="Hedelin, Annika and Björnstig, U. and Brismar, B.",
volume="92",
number="50",
pages="4803-4806",
abstract="<p>[Abstract unavailable]</p> <p>Language: sv</p>",
language="sv",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}