 this macro with caution.  If the bibliography for a
<a href="rectoverso.html#collate">collated</a>
document is to be output at the document&#8217;s end,
BIBLIOGRAPHY_FIRST_PAGENUMBER tells mom what page number to put on
the first page of the bibliography.
</p>

<p>
However, if you&#8217;re outputting a bibliography at the end of each
section (chapter, article, etc) of a collated document,
you have to reset every section&#8217;s first page number after
<a href="rectoverso.html#collate">COLLATE</a>
and befor