refmeta — Meta-information for a reference entry.
refmeta holds the title of the reference
page, the number of the volume in which this reference page occurs, and
possibly other miscellaneous information (typically used in printing the
Suppressed. Most of the elements contained in
refmeta are used in presentation, but they are not
generally printed as part of the formatting of the
refmeta wrapper—it merely serves to identify where
refentry for examples that use this element.