@article{ref1,
title="Statistics of London traffic",
journal="Journal of the Royal Statistical Society",
year="1904",
author="Harper, E. J.",
volume="67",
number="2",
pages="177-177",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="",
issn="0952-8385",
doi="10.2307/2339597",
url="http://dx.doi.org/10.2307/2339597"
}