diff --git a/references/gen.sh b/references/gen.sh
index 309856f..e90921f 100755
--- a/references/gen.sh
+++ b/references/gen.sh
@@ -23,9 +23,8 @@ time { font-family: Arial, sans-serif; font-size: 10pt; }</style>
 <p>
 <ul>
 EOF
-for i in $( ls -1v ds*.html | tac ); do 
-  n=$(echo $i|cut -d. -f1|cut -c3-)
-  echo "<li><a href=\"references/$i\">Ausgabe $n</a></li>" >> ${fn}
+for n in $( ls ds*.html|cut -c3- |cut -d'.' -f1|sort -n|tac ); do 
+  echo "<li><a href=\"references/ds${n}.html\">Ausgabe $n</a></li>" >> ${fn}
 done
 cat >> ${fn} <<EOF
 </ul>