diff --git a/common/pgscript.sty b/common/pgscript.sty
index 6d637289def3ba40bc0b5bf20e9f8f2d955301d8..b39922c2cb4af7b4963386f2b6f75edf09da73ad 100644
--- a/common/pgscript.sty
+++ b/common/pgscript.sty
@@ -33,31 +33,32 @@
 \usepackage{pstricks}
 \usepackage{ifluatex}
 
-% Repair kerning: Automatically insert "\kern{-0.15em}" between "//" % (in URLs).
-\ifluatex
-\directlua{
-  local glyph = node.id ("glyph")
-  local function my_kerning (head)
-    for t in node.traverse (head) do
-      if t.id == glyph and t.char == 47 then
-        if t.next
-           and t.next.next
-           and t.next.next.id == glyph
-           and t.next.next.char == 47 then
-          local k = node.new ("kern")
-          k.kern = tex.sp ("-0.15em")
-          k.next = t.next
-          k.prev = t
-          t.next.prev = k
-          t.next = k
-        end
-      end
-    end
-    node.kerning (head)
-  end
-  luatexbase.add_to_callback ("kerning", my_kerning, "URL kerning")
-}
-\fi
+%% Repair kerning: Automatically insert "\kern{-0.15em}" between "//" % (in URLs).
+%% PG20151206: This seems unnecessary here. Maybe due to \sf?
+%\ifluatex
+%\directlua{
+%  local glyph = node.id ("glyph")
+%  local function my_kerning (head)
+%    for t in node.traverse (head) do
+%      if t.id == glyph and t.char == 47 then
+%        if t.next
+%           and t.next.next
+%           and t.next.next.id == glyph
+%           and t.next.next.char == 47 then
+%          local k = node.new ("kern")
+%          k.kern = tex.sp ("-0.15em")
+%          k.next = t.next
+%          k.prev = t
+%          t.next.prev = k
+%          t.next = k
+%        end
+%      end
+%    end
+%    node.kerning (head)
+%  end
+%  luatexbase.add_to_callback ("kerning", my_kerning, "URL kerning")
+%}
+%\fi
 
 \definecolor{blendedblue}{rgb}{0.2,0.2,0.7}
 \definecolor{darkgreen}{rgb}{0.0,0.3,0.0}
diff --git a/script/ainf-2015ws.pdf b/script/ainf-2015ws.pdf
index 5ae01a914bb45e9528f7180ce453c74322a6f534..73182d612dfe6f323d9f23af9121592bd501c8ea 100644
Binary files a/script/ainf-2015ws.pdf and b/script/ainf-2015ws.pdf differ
diff --git a/script/ainf-2015ws.tex b/script/ainf-2015ws.tex
index 57348129e3b798e2540d6f5623fd16c129beb095..95dbabbe1bee171c00a2e54c301221b0e5b53105 100644
--- a/script/ainf-2015ws.tex
+++ b/script/ainf-2015ws.tex
@@ -80,7 +80,7 @@
 
     \strut\vfill
 
-    Stand: 11.\ November 2015
+    Stand: 6.\ Dezember 2015
 
     Soweit nicht anders angegeben:\\
     Copyright \copyright\ 2012, 2013, 2015\quad Peter Gerwinski\\
@@ -4167,7 +4167,7 @@
   (Ein sehr ähnlicher Mechanismus wird von modernen Betriebssystemen weiterhin für Systemaufrufe genutzt.
   Hier geht es darum, den Übergang von potentiell unsicherem Code in Anwenderprogrammen
   zum vertrauenswürdigen Code des Betriebssystems zu kontrollieren. Für Details siehe:\\
-  http://de.wikipedia.org/wiki/Software-Interrupt, http://de.wikipedia.org/wiki/Systemaufruf)
+  \url{http://de.wikipedia.org/wiki/Software-Interrupt}, \url{http://de.wikipedia.org/wiki/Systemaufruf})
 
   \subsection{Byte-Reihenfolge -- Endianness}