diff --git a/Documentation/Doxygen/3-DeveloperManual/Starting/GettingToKnow/Tutorial/Step09.dox b/Documentation/Doxygen/3-DeveloperManual/Starting/GettingToKnow/Tutorial/Step09.dox
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--- a/Documentation/Doxygen/3-DeveloperManual/Starting/GettingToKnow/Tutorial/Step09.dox
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@@ -1,80 +1,80 @@
 /**
 
 \page Step09Page MITK Tutorial - Step 9: A plug-in
 
 MITK uses a very modular concept to maximize reusability and portability. A MITK application based on the BlueBerry
 application framework (for example the MITK Workbench) consists of several bundles (or plug-ins). A bundle can contain
 resources and program logic. It can also contribute so-called Views to the main application, which provide a specific
 user interface for controlling the bundles functions.
 
 The creation of a MITK plug-in is considerably facilitated by using the MITK PluginGenerator as described in \ref NewPluginPage if you want to add a new view to an existing plugin see \ref NewViewPage.
 
 The mentioned tool was used to create a plug-in called org.mitk.example.gui.regiongrowing.
 Let's first take a look at which files the PluginGenerator has created:
 
 \verbatim
 documentation\doxygen\
   modules.dox......................... Doxygen file for documenting your plug-in
 
 resources\
   icon.png............................ The icon of your plug-in. GIMP or other programs (including your text editor)
                                        can be used to change this
 
 src\internal\
   QmitkRegionGrowingView.cpp.......... The most important file, implementing behaviour
   QmitkRegionGrowingView.h............ Header file of the functionality
   QmitkRegionGrowingViewControls.ui... XML file of the Qt Designer, describes buttons, combo boxes, etc. of your controls
 
 CMakeLists.txt \...................... Build system related files for CMake
 files.cmake    /
 manifest_headers.cmake................ Information about your plug-in
 plugin.xml ........................... BlueBerry integration
 \endverbatim
 
 If you are not familiar with Qt development, please look into
-<a href="http://doc.qt.digia.com/4.7/designer-manual.html">this Digia page describing .ui files</a> (no, forget about the please, DO it!)
+<a href="http://doc.qt.io/qt-5/qtdesigner-manual.html">this Qt company page describing .ui files</a> (no, forget about the please, DO it!)
 
 The C++ files implement a subclass of QmitkAbstractView. In this special case of QmitkRegionGrowing, we added the option to set some seed points and run a region grower. If you are interested in the concrete changes necessary to turn a freshly generated QmitkRegionGrowing into an integrated one:
 
 The plug-in will be build as part of MITK Workbench. Do use it start MITK Workbench an select the region growing view in the view menu.
 
 To add a mitk::PointSet for the seed points:
 QmitkRegionGrowingView.h
 
 Add includes and forward declarations:
 \snippet QmitkRegionGrowingView.h includes
 
 Add the point set and a pointer to a QmitkPointListWidget as a private member:
 \snippet QmitkRegionGrowingView.h members
 
 QmitkRegionGrowingView.cpp
 
 CreateQtPartControl():
 \snippet QmitkRegionGrowingView.cpp cpp-createqtpartcontrol
 
 To use the ITK region grower:
 
 QmitkRegionGrowingView.h
 
 Add the private method:
 \snippet QmitkRegionGrowingView.h itkimageprocessing
 
 QmitkRegionGrowingView.cpp
 
 Add includes:
 \snippet QmitkRegionGrowingView.cpp cpp-includes
 
 DoImageProcessing():
 \snippet QmitkRegionGrowingView.cpp cpp-doimageprocessing
 
 And add the new method:
 \snippet QmitkRegionGrowingView.cpp cpp-itkimageaccess
 
 Have fun using MITK!
 
 If you meet any difficulties during your first steps, don't hesitate to ask on the MITK mailing list mitk-users@lists.sourceforge.net!
 People there are kind and will try to help you.
 
  \ref Step08Page "[Previous step]" \ref Step10Page "[Next Step]" \ref TutorialPage "[Main tutorial page]"
 
 */