diff --git a/Doc/Sda1/jpaintro.xml b/Doc/Sda1/jpaintro.xml
index 29d738ff3fe31a1c271002fb88f99fd7c015a8f8..882c3a9fce2e6b30837ecc3539643ade573b82d8 100644
--- a/Doc/Sda1/jpaintro.xml
+++ b/Doc/Sda1/jpaintro.xml
@@ -66,7 +66,7 @@
 
     <informaltable border="0">
       <tr>
-        <th>OO</th>
+        <th><xref linkend="glo_OO"/></th>
 
         <th>Relational</th>
       </tr>
@@ -1224,9 +1224,9 @@ TRACE [main] sql.BasicBinder (BasicBinder.java:65) - binding parameter [1] as [V
                 <para>The <xref linkend="glo_Junit"/> test class
                 <classname>rdbms2catalog.TestSchema</classname> does contain
                 <xref linkend="glo_JPA"/> data inserting code being commented
-                out. Having your data model completed you may uncomment these.
-                Test execution will then populate your database with sample
-                data.</para>
+                out. Having your data model completed you may un comment
+                these. Test execution will then populate your database with
+                sample data.</para>
               </listitem>
 
               <listitem>