<firstname>Raphaël</firstname> <surname>Hertzog</surname>
</author>
<author>
+<firstname>Lucas</firstname> <surname>Nussbaum</surname>
+</author>
+<author>
<firstname>Christian</firstname> <surname>Schwarz</surname>
</author>
<author>
<copyright>
<year>2002</year>
<year>2003</year>
+<year>2008</year>
+<year>2009</year>
<holder>Raphaël Hertzog</holder>
</copyright>
<copyright>
+<year>2008</year>
+<year>2009</year>
+<holder>Lucas Nussbaum</holder>
+</copyright>
+<copyright>
<year>1997</year>
<year>1998</year>
<holder>Christian Schwarz</holder>