@article{ref1,
title="Work zone safety, maintenance management and equipment, and transportation of hazardous materials",
journal="Transportation research record",
year="1981",
author="Singer-Bart, Susan",
volume="833",
number="",
pages="-",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0361-1981",
doi="",
url="http://dx.doi.org/"
}