Node:Cross-refs, Next:Tags, Previous:Menus, Up:Advanced Info
A cross reference can be placed anywhere in the text, unlike a menu
item which must go at the front of a line.  A cross reference looks
like a menu item except that it has *note instead of *. 
It cannot be terminated by a ), because )'s are
so often part of node names.  If you wish to enclose a cross reference
in parentheses, terminate it with a period first.  Here are two
examples of cross references pointers:
*Note details: commands. (See *note 3: Full Proof.)
These are just examples. The places they "lead to" do not really exist!