You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query>
    <alllinks>
      <l ns="0" title="Coordinated Universal Time" />
      <l ns="0" title="Cours MAP411" />
      <l ns="0" title="Cours MAP558 2007" />
      <l ns="0" title="MAP558" />
      <l ns="0" title="Master 2 Course" />
      <l ns="0" title="Master 2 Course" />
      <l ns="0" title="Octobre 2008" />
      <l ns="0" title="Section=2" />
      <l ns="0" title="Septembre 2008" />
      <l ns="0" title="Septembre 23" />
    </alllinks>
  </query>
</api>