Fix title in reference section

Reported-by: Robert Kahlert
Author: Daniel Gustafsson

diff --git a/doc/src/sgml/biblio.sgml b/doc/src/sgml/biblio.sgml
index d85e3f0a24af7e348c38b57f686194515316401d..204970c2778bef2aa16aba5e82b7ee347797fda0 100644 (file)
--- a/doc/src/sgml/biblio.sgml
+++ b/doc/src/sgml/biblio.sgml
@@ -145,8 +145,8 @@
    </biblioentry>
 
    <biblioentry id="ULL88">
-    <title>Principles of Database and Knowledge</title>
-    <subtitle>Base Systems</subtitle>
+    <title>Principles of Database and Knowledge-Base Systems</title>
+    <subtitle>Classical Database Systems</subtitle>
     <titleabbrev>Ullman, 1988</titleabbrev>
     <authorgroup>
      <author>