@article{ref1,
title="Socio-economic barriers to sustainable transport",
journal="Journal of transport geography",
year="2000",
author="Black, William R.",
volume="8",
number="2",
pages="141-147",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0966-6923",
doi="10.1016/S0966-6923(99)00038-1",
url="http://dx.doi.org/10.1016/S0966-6923(99)00038-1"
}