(document :title [Various Links]

  (chapter :title [A Section]
     
     [The first link points to an external web page.
Here we point to a ,(ref :url "http://slashdot.org/"
:text [Slashdot]) web page.  The second one points to
the second ,(ref :chapter "A Second Section" :text
[section]) of that document.])

  (chapter :title "A Second Section"
     
     [The last link points to the first
,(ref :skribe "user.sui" :chapter "Introduction"
:text [chapter]) of the Skribilo User Manual.]))