diff --git a/latex/content/basics.tex b/latex/content/basics.tex
index aff2790c..23fa7948 100644
--- a/latex/content/basics.tex
+++ b/latex/content/basics.tex
@@ -178,7 +178,7 @@ \section{Grundlagen}
 \begin{frame}[fragile]{
   Fonteinstellungen
   \hfill
-  \doc{http://mirrors.ctan.org/macros/latex/contrib/fontspec/fontspec.pdf}{fontspec}
+  \doc{http://mirrors.ctan.org/macros/unicodetex/latex/fontspec/fontspec.pdf}{fontspec}
 }
   Standardeinstellung sind die Latin-Modern-Fonts.
   \vspace{1em}
diff --git a/latex/content/bibliography.tex b/latex/content/bibliography.tex
index 2babdbb4..2f4b6ad4 100644
--- a/latex/content/bibliography.tex
+++ b/latex/content/bibliography.tex
@@ -31,7 +31,10 @@ \section{Literaturverzeichnis}
   \end{tikzpicture}
 \end{frame}
 
-\begin{frame}{Warum \texttt{biber}?}
+\begin{frame}{Warum \texttt{biber}?
+    \hfill
+    \doc{http://mirrors.ctan.org/biblio/biber/base/documentation/biber.pdf}{biber}
+  }
   \begin{itemize}
     \item Unterstützt Unicode-Input
     \item Wird weiterentwickelt, zusammen mit \BibLaTeX
@@ -198,7 +201,7 @@ \section{Literaturverzeichnis}
 \begin{frame}[fragile]{%
   \BibLaTeX{}%
   \hfill%
-  \doc{http://mirrors.ctan.org/macros/latex/contrib/biblatex/doc/biblatex.pdf}{biblatex}
+  \doc{http://mirrors.ctan.org/macros/latex/contrib/biblatex/doc/biblatex.pdf}{Bib\LaTeX}
 }
   \begin{Packages}
     \begin{minted}{latex}
diff --git a/latex/content/chemistry.tex b/latex/content/chemistry.tex
index 6386d27c..f2a956ec 100644
--- a/latex/content/chemistry.tex
+++ b/latex/content/chemistry.tex
@@ -1,5 +1,8 @@
 \section{Chemische Formeln}
-\begin{frame}[fragile]{Chemische Formeln}
+\begin{frame}[fragile]{Chemische Formeln
+    \hfill
+    \doc{http://mirrors.ctan.org/macros/latex/contrib/mhchem/mhchem.pdf}{mhchem}
+  }
   \begin{Packages}
     \begin{minted}{latex}
       \usepackage[
diff --git a/latex/content/end.tex b/latex/content/end.tex
index 606d2fef..7c48c249 100644
--- a/latex/content/end.tex
+++ b/latex/content/end.tex
@@ -50,6 +50,7 @@ \section{Ausblick}
 \end{frame}
 
 \begin{frame}[t]
+  \vspace{0.1em}
   \centering
   \only<1>{
     \includegraphics[height=6.1em]{figures/formats-few.pdf}
@@ -84,11 +85,11 @@ \section{Ausblick}
 
 \begin{frame}[fragile]{Möglichkeiten mit \LaTeX}
   \begin{description}[MusiXTeX, Lilypond]
-    \item[\href{http://mirrors.ctan.org/macros/latex/contrib/koma-script/doc/scrguide.pdf}{\texttt{scrlettr2}}] Briefe
-    \item[\href{http://mirrors.ctan.org/macros/musixtex/doc/musixdoc.pdf}{MusiXTeX}, \href{http://www.lilypond.org/}{Lilypond}] Notensatz
-    \item[\texttt{IEEEtrantools}] Mächtigere Matheumgebungen
+    \item[\href{http://mirrors.ctan.org/macros/latex/contrib/koma-script/doc/scrguide-de.pdf}{\texttt{scrlettr2}}] Briefe
+    \item[\href{http://mirrors.ctan.org/macros/generic/musixtex/doc/musixdoc.pdf}{MusiXTeX}, \href{http://www.lilypond.org/}{Lilypond}] Notensatz
+    \item[\href{http://mirrors.ctan.org/macros/latex/contrib/IEEEtran/tools/IEEEtrantools_doc.txt}{\texttt{IEEEtrantools}}] Mächtigere Matheumgebungen
     \item[Poster] \texttt{beamerposter}, \texttt{tcolorbox}
-    \item[todonotes] TODOs im Text, Liste am Ende, Platzhalter für Grafiken
+    \item[\href{http://mirrors.ctan.org/macros/latex/contrib/todonotes/todonotes.pdf}{todonotes}] TODOs im Text, Liste am Ende, Platzhalter für Grafiken
   \end{description}
 \end{frame}
 
diff --git a/latex/content/floats.tex b/latex/content/floats.tex
index d7ca206c..88992661 100644
--- a/latex/content/floats.tex
+++ b/latex/content/floats.tex
@@ -2,7 +2,7 @@ \section{Gleitumgebungen}
 \begin{frame}[fragile]{
   Gleitumgebungen
   \hfill
-  \doc{http://mirrors.ctan.org/macros/latex/contrib/caption/caption-deu.pdf}{caption}
+  \doc{http://mirrors.ctan.org/macros/latex/contrib/caption/caption.pdf}{caption}
 }
   \begin{itemize}
     \item Zum setzen von Elementen, die nicht Fließtext sind
diff --git a/latex/content/math-basic.tex b/latex/content/math-basic.tex
index 98a4d372..a2475c30 100644
--- a/latex/content/math-basic.tex
+++ b/latex/content/math-basic.tex
@@ -3,7 +3,7 @@
   \hfill
   \doc{http://mirrors.ctan.org/macros/latex/required/amsmath/amsldoc.pdf}{amsmath}
   \doc{http://mirrors.ctan.org/macros/latex/contrib/mathtools/mathtools.pdf}{mathtools}
-  \doc{http://mirrors.ctan.org/macros/latex/contrib/unicode-math/unicode-math.pdf}{unicode-math}
+  \doc{http://mirrors.ctan.org/macros/unicodetex/latex/unicode-math/unicode-math.pdf}{unicode-math}
 }
 
   \vspace{5pt}
@@ -339,7 +339,7 @@
 \begin{frame}[fragile]{
   Fonts
   \hfill
-  \doc{http://mirrors.ctan.org/macros/latex/contrib/unicode-math/unicode-math.pdf}{unicode-math}
+  \doc{http://mirrors.ctan.org/macros/unicodetex/latex/unicode-math/unicode-math.pdf}{unicode-math}
 }
   \begin{CodeExample}{0.70}
     \begin{minted}{latex}
@@ -487,7 +487,7 @@
   Symbol-Sammlung
   \hfill
   \doc{http://mirrors.ctan.org/info/symbols/comprehensive/symbols-a4.pdf}{symbols-a4}
-  \doc{http://mirrors.ctan.org/macros/latex/contrib/unicode-math/unimath-symbols.pdf}{unimath-symbols}
+  \doc{http://mirrors.ctan.org/macros/unicodetex/latex/unicode-math/unimath-symbols.pdf}{unicode-math}
 }
   Praktischer Link: \\
   \href{http://detexify.kirelabs.org/classify.html}{http://detexify.kirelabs.org/classify.html} \\