@article{ref1,
title="Reducing speed limit to 20 mph in urban areas. Both advisory and mandatory speed limits are being introduced in Edinburgh",
journal="British medical journal: BMJ",
year="2001",
author="Gorman, D. and Douglas, Margaret and Noble, P. and Patton, George",
volume="322",
number="7277",
pages="51-51",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0959-8138",
doi="",
url="http://dx.doi.org/"
}