@article{ref1,
title="Downtown pedestrian malls in Sweden and the United States",
journal="Transportation quarterly",
year="1992",
author="Robertson, KA",
volume="46",
number="1",
pages="37-55",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0278-9434",
doi="",
url="http://dx.doi.org/"
}