diff --git a/en_US.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml b/en_US.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml
index 62fbce4f00..6f8d39ef26 100644
--- a/en_US.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml
+++ b/en_US.ISO8859-1/books/handbook/ppp-and-slip/chapter.sgml
@@ -2068,6 +2068,13 @@ ppp_profile="name_of_service_provider"</programlisting>
 	  <para><ulink url="http://renaud.waldura.com/doc/freebsd/pppoe/">Cheaper Broadband with FreeBSD on
 	    DSL</ulink> by Renaud Waldura.</para>
 	</listitem>
+
+	<listitem>
+	  <para><ulink
+	      url="http://www.ruhr.de/home/nathan/FreeBSD/tdsl-freebsd.html">
+	      Nutzung von T-DSL und T-Online mit FreeBSD</ulink>
+	    by Udo Erdelhoff (in German).</para>
+	</listitem>
       </itemizedlist>
     </sect2>