ZVON > References > XSLT Reference
Go to standard

XSLT function: string unparsed-entity-uri (string)

Standard excerpt:

The unparsed-entity-uri returns the URI of the unparsed entity with the specified name in the same document as the context node. It returns the empty string if there is no such entity. Examples (xslt:xml):

Interactive xlab: [xsl:value-of] [xsl:template]