@article{ref1,
title="The impact on network performance of drivers' response to alternative road pricing schemes",
journal="Research in transportation economics",
year="2004",
author="May, Anthony and Milne, David",
volume="9",
number="",
pages="61-85",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0739-8859",
doi="10.1016/S0739-8859(04)09003-1",
url="http://dx.doi.org/10.1016/S0739-8859(04)09003-1"
}