nbsp;The argument
<span style="font-style: normal"><kbd>&lt;underscore weight&gt;</kbd></span>
must not have the
<a href="definitions.html#unitofmeasure">unit of measure</a>,
<span style="font-style: normal;"><kbd>p</kbd></span>, appended to it
</p>

<p>
Invoked without an argument,
<kbd>.BIBLIOGRAPHY_STRING_UNDERSCORE</kbd> will place a single rule
underneath the bibliography&#8217;s first-page title.  Invoked with the
argument, <kbd>DOUBLE</kbd>, BIBLIOGRAPHY_STRING_UNDERSCORE will
double-underscore the t