Cross-reference from an index entry to a note
Footnote numbers are usually preceded by a label such as "note", "n.", "nn." [= "notes"]. Take care to distinguish page numbers from footnote numbers.
Printed book
XML
<indexItem1>
<xrefGrp>
<xref ref="oso-9780199297191-note-58">20 nn. 58</xref> and <xref ref="oso-9780199297191-note-61">61</xref>
</xrefGrp>, <pageNum pageId="35">
<xref ref="oso-9780199297191-chapter-2-milestone-35">35</xref>
</pageNum>
</indexItem1>