ref-type

Type of Cross Reference

Indicates the type of element to which a cross reference is pointing (e.g., to a figure, a footnote, a citation, etc.). These values may be used for type-specific processing or validation.

Attribute Values

In Element

<xref>
Value Meaning
Text, numbers, or special characters. To what element is the cross-reference pointing
Restriction: This attribute may be specified if the element is used.

Suggested usage

Values may include:

app

Reference to an appendix

bibr

Reference to a bibliographic citation in a reference list

disp-formula

Reference to a display formula (equation)

fig

Reference to a figure

fig-anchor

Place where a figure would be placed in the text, if it were not placed in the <floats-group> at the back of the article. This should not be confused with a reference to a figure “ref-type="fig"”, which is an internal cross reference to a figure from within the text.

fn

Reference to a footnote

ref-list

Reference to a bibliographic references list

sec

Reference to a section

statement

Reference to a statement, such as a lemma or hypothesis

table

Reference to a table

table-anchor

Place where a table would be placed in the text, if it were not placed in the <floats-group> at the back of the article. This should not be confused with a reference to a figure “ref-type="table"”, which is an internal cross reference to a table from within the text.