@article{ref1,
title="Comment on Theeuwes and Riemersma's revisit of daytime running lights",
journal="Accident analysis and prevention",
year="1996",
author="Williams, Allan F. and Farmer, Charles M.",
volume="28",
number="4",
pages="541-542",
abstract="Abstract unavailable.",
language="en",
issn="0001-4575",
doi="",
url="http://dx.doi.org/"
}