@article{ref1,
title="Possible transport policies for urban areas during the 1990's",
journal="Transportation planning and technology",
year="1993",
author="Himanen, Veli",
volume="17",
number="4",
pages="331-339",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0308-1060",
doi="10.1080/03081069308717524",
url="http://dx.doi.org/10.1080/03081069308717524"
}