diff --git a/Doc/Sd1/gettingStarted.xml b/Doc/Sd1/gettingStarted.xml
index a02b2d316590fc4a8b9eb66fb875ed2d2b1a6bfa..77663277e7a7afd321798b143ebe0aaa4e6eb94c 100644
--- a/Doc/Sd1/gettingStarted.xml
+++ b/Doc/Sd1/gettingStarted.xml
@@ -197,13 +197,8 @@
       native (dual boot) installation</title>
 
       <para>A <trademark
-      xlink:href="https://www.virtualbox.org">Virtualbox</trademark> <link
-      xlink:href="https://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox">Linux
-      image with MI supplements</link> as <filename
-      xlink:href="https://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/mibuntu.rar">mibuntu.rar</filename>
-      (compressed) or <filename
-      xlink:href="https://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/mibuntu.vdi">mibuntu.vdi</filename>
-      (uncompressed)</para>
+      xlink:href="https://www.virtualbox.org">Virtualbox </trademark> image mibuntu.vdi provided by compressed <link
+      xlink:href="https://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox"> rar archives</link>.</para>
 
       <caution>
         <itemizedlist>
diff --git a/Doc/Sda1/jdbc.xml b/Doc/Sda1/jdbc.xml
index 8bb0ef8c32dcdedbd1c8c3ed3f7d34a40e4ef0f5..be74c9429879ac14f29f2121910432df0527d1fc 100644
--- a/Doc/Sda1/jdbc.xml
+++ b/Doc/Sda1/jdbc.xml
@@ -791,17 +791,16 @@ mysql-proxy   6446/udp</screen>
               xlink:href="https://docs.oracle.com/javase/9/docs/api/java/sql/Connection.html">java.sql.Connection</classname>,
               <classname
               xlink:href="https://docs.oracle.com/javase/9/docs/api/java/sql/Statement.html">java.sql.Statement</classname>
-              and friens will be created during the bootstrap process starting
-              from <classname
+              and friends will be created during the bootstrap process
+              starting from <classname
               xlink:href="https://docs.oracle.com/javase/9/docs/api/java/sql/DriverManager.html">java.sql.DriverManager</classname>.</para>
             </answer>
           </qandaentry>
         </qandadiv>
       </qandaset>
 
-      <para>So how does it actually work with respect to coding? You may want
-      to read <xref linkend="toolingConfigJdbc"/> before starting your
-      exercises. We first prepare a database table:</para>
+      <para>So how does it actually work with respect to coding? We first
+      prepare a database table:</para>
 
       <figure xml:id="figSchemaPerson">
         <title><code>Person</code> table</title>
diff --git a/Doc/Sda1/prerequisites.xml b/Doc/Sda1/prerequisites.xml
index 102168c6a4e1c0ca62c54a3b470441186200d4f7..35389007be79700df19a864c7eaac08fee51d8f7 100644
--- a/Doc/Sda1/prerequisites.xml
+++ b/Doc/Sda1/prerequisites.xml
@@ -157,11 +157,7 @@
     well. For the latter some command line hints may have to be replaced by
     using GUI based tools.</para>
 
-    <para>You may want to use the <link
-    xlink:href="https://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/mibuntu.vdi">corresponding</link>
-    <link xlink:href="https://www.virtualbox.org">Virtualbox image</link>
-    containing a complete system avoiding installation hassles. This should
-    work well one reasonable current hardware systems.</para>
+    <para>You may want to consider using either of MI VirtualBox or VMware image, see <xref linkend="sd1_fig_VirtualboxImage"/> for details.</para>
 
     <section xml:id="eclipse">
       <title><productname
@@ -169,7 +165,7 @@
       and IntelliJ IDEA</title>
 
       <para>So you like to take the hard way rather than using <link
-      xlink:href="https://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox/mibuntu.vdi">the
+      xlink:href="https://mirror.mi.hdm-stuttgart.de/ubuntu/VirtualBox">the
       virtualbox image</link>? Good! Real programmers tend to complicate
       things!</para>
 
@@ -185,6 +181,10 @@
           <para>Certain functionalities may not be provided</para>
         </listitem>
 
+        <listitem>
+          <para>These tools are (most likely!) not on offer during the E-examination.</para>
+        </listitem>
+
         <listitem>
           <para><orgname>HdM</orgname> staff support in case of troubles will
           be limited to coding excluding tool support. In other words: You are
diff --git a/Doc/Sda1/xmlschema.xml b/Doc/Sda1/xmlschema.xml
index c98b7b7eb8fa049063cf69d945a2dfd8bcc7b0aa..281225320d6c787b58c8b341a7fd54195b47e5d8 100644
--- a/Doc/Sda1/xmlschema.xml
+++ b/Doc/Sda1/xmlschema.xml
@@ -3914,7 +3914,8 @@ public class Memo {
           </qandadiv>
         </qandaset>
 
-        <qandaset defaultlabel="qanda" xml:id="example_book.dtd_v5">
+        <qandaset defaultlabel="qanda"
+                  xml:id="sda1_xmlschema_qandaset_bookFinal">
           <title>Supporting <tag class="starttag">table</tag> and internal
           references in <filename>book.xsd</filename>.</title>
 
diff --git a/Doc/Sda1/xslt.xml b/Doc/Sda1/xslt.xml
index 5c6eb893e0678511c6e6c05ef83c813b5bef34b3..0575855dae31a897c71d31481cbf4011c1baff02 100644
--- a/Doc/Sda1/xslt.xml
+++ b/Doc/Sda1/xslt.xml
@@ -1657,10 +1657,10 @@ you need some </emphasis>&lt;em&gt;time&lt;/em&gt;<emphasis role="bold">.</empha
         <qandadiv>
           <qandaentry>
             <question>
-              <para>In <xref linkend="sda1SectSetInternRef"/> we constructed a
-              schema allowing itemized lists and mixed content for <tag
-              class="starttag">book</tag> instances. This schema also allowed
-              to define <tag class="starttag">emphasis</tag>, <tag
+              <para>In <xref linkend="sda1_xmlschema_qandaset_bookFinal"/> we
+              constructed a schema allowing itemized lists and mixed content
+              for <tag class="starttag">book</tag> instances. This schema also
+              allowed to define <tag class="starttag">emphasis</tag>, <tag
               class="starttag">table</tag> and <tag
               class="starttag">link</tag> elements being part of a mixed
               content definition. Extend the current book2html.xsl to account
diff --git a/Klausuren/Sda1/2017winter/Solve/.gitignore b/Klausuren/Sda1/2017winter/Solve/.gitignore
index 3498d4a33af9ad0c5bdef457500858d908cdb48c..6f9e4762661859bf2bd54ebee5f2b11139f29270 100644
--- a/Klausuren/Sda1/2017winter/Solve/.gitignore
+++ b/Klausuren/Sda1/2017winter/Solve/.gitignore
@@ -1,4 +1,4 @@
 /.classpath
 /.project
 A1.log
-
+/.idea