@article{ref1,
title="The conveyance of dangerous substances by road",
journal="Advancement of science",
year="1969",
author="Black, H. K.",
volume="25",
number="126",
pages="381-385",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0001-866X",
doi="",
url="http://dx.doi.org/"
}