diff --git a/tmpl/tex/de_technical/header.tex.tmpl b/tmpl/tex/de_technical/header.tex.tmpl
index b6393102..6e83de2e 100644
--- a/tmpl/tex/de_technical/header.tex.tmpl
+++ b/tmpl/tex/de_technical/header.tex.tmpl
@@ -72,6 +72,8 @@
 %\usepackage{epsfig}
 %\usepackage[umlaute]
 
+\usepackage[pdftex,colorlinks,backref,pagebackref]{hyperref}
+
 \textwidth 15cm
 \textheight 23.5cm
 \topmargin -0.4cm
diff --git a/tmpl/tex/en_technical/header.tex.tmpl b/tmpl/tex/en_technical/header.tex.tmpl
index 06cd855c..085aaebc 100644
--- a/tmpl/tex/en_technical/header.tex.tmpl
+++ b/tmpl/tex/en_technical/header.tex.tmpl
@@ -81,6 +81,8 @@
 \evensidemargin 0.5cm
 % \renewcommand{\baselinestretch}{1.5}
 
+\usepackage[pdftex,colorlinks,backref,pagebackref]{hyperref}
+
 \newcommand{\C}{\mathbb{C}}
 \newcommand{\R}{\mathbb{R}}
 \newcommand{\N}{\mathbb{N}}