@article{ref1,
title="In search of logistics visibility : enabling effective decision making",
journal="Defense transportation journal",
year="2007",
author="Christianson, C.",
volume="63",
number="3",
pages="9-11",
abstract="<p>[Abstract unavailable]</p>",
language="",
issn="0011-7625",
doi="",
url="http://dx.doi.org/"
}