@article{ref1,
title="Focus",
journal="Oil and energy trends",
year="2008",
author="",
volume="33",
number="6",
pages="3-6",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="1744-7992",
doi="10.1111/j.1744-7992.2008.330603.x",
url="http://dx.doi.org/10.1111/j.1744-7992.2008.330603.x"
}