@xref with Two Arguments ¶With two arguments, the second is used as a label for the online output.
The template is like this:
@xref{node-name, online-label}.
For example,
@xref{Electrical Effects, Lightning}.
produces:
*Note Lightning: Electrical Effects.
in Info and
See Section 5.2 [Electrical Effects], page 57.
in a printed manual, where the node name is printed.
The second argument to cross-references shares constraints with node names. The potentially problematic character in this context is the colon. See Info Node Names Constraints.