<book>
  <title>
    Foundations of Semantic Web Technologies
  </title>
  <author>
   Pascal Hitzler
  </author>
  <author>
    Markus Kroetzsch
    <homepage>
      http://korrekt.org
    </homepage>
  </author>
  <author>
    Sebastian Rudolph
  </author>
  <publisher>
    CRC Press
  </publisher>
</book>