<div dir="ltr">The Fourth International Conference on Grey Literature (GL '99) in Washington, DC, in October 1999 defined grey literature as follows: "<b><font color="#ff0000">That which is produced on all levels of government, academics, business and industry in print and electronic formats, but which is not controlled by commercial publishers.</font></b>"<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;display:inline">
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