diff --git a/Doc/Sda1/prerequisites.xml b/Doc/Sda1/prerequisites.xml
index 8ac4d00e49be9aaeb48ccbf7001358b7ab88405d..0ae34cbd069c47f67398272bf1ff55a0032a4156 100644
--- a/Doc/Sda1/prerequisites.xml
+++ b/Doc/Sda1/prerequisites.xml
@@ -91,7 +91,7 @@
         boot) installation</glossterm>
 
         <glossdef>
-          <para>See <xref linkend="virtualboxCsmImage"/>.</para>
+          <para>See <xref linkend="sd1_fig_VirtualboxImage"/>.</para>
         </glossdef>
       </glossentry>
 
diff --git a/Doc/Tdoc/general.xml b/Doc/Tdoc/general.xml
index 3d21452e9ead32292aa4ec10afa0cf95c03bd72a..e5b37dfbdc4afef9f36c8ddda9b42ecb9966f9d1 100644
--- a/Doc/Tdoc/general.xml
+++ b/Doc/Tdoc/general.xml
@@ -12,7 +12,7 @@
   <title>Software independent considerations</title>
 
   <para>This lecture predominantly targets using XML as a means for
-  representing documents. </para>
+  representing documents.</para>
 
   <para>XML is widely used providing persistence for various low level office
   formats like e.g. <productname
@@ -602,7 +602,7 @@
           <tr>
             <th><xref linkend="glo_HTML"/></th>
 
-            <td><programlisting language="html"><code>&lt;p&gt;A paragraph&lt;/ul&gt;</code></programlisting></td>
+            <td><programlisting language="html"><code>&lt;p&gt;A paragraph&lt;/p&gt;</code></programlisting></td>
 
             <th><xref linkend="glo_Docbook"/></th>