diff --git a/ReadMe.md b/ReadMe.md
index 7e13d12b8f54c6a01381c7a98c9772fa3b12c2bb..b714beeb45ad23368149a5cb2916a1fdedc573cb 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -32,13 +32,59 @@ with saving the project to project.pet again:
 petrack.exe -project project.pet -sequence frame000.jpg -autoTrack tracker_file -autoSave project.pet
 ```
 
-
 ## Tutorial & demo
 A small demo project is provided in the `demo` folder. It contains all necessary files for setting up a project with
 PeTrack. A tutorial leading through all steps can be found in the
 [Wiki](https://jugit.fz-juelich.de/ped-dyn-emp/petrack/-/wikis/usage/Workflow%20for%20performing%20experiments%20to%20by%20analyzed%20with%20PeTrack#using-petrack).
 The intermediate project files for each step are also included in the `demo` folder.
 
+## How to cite
+Please cite the general paper and the corresponding software version in your publications if PeTrack helps your research.
+
+In general:
+- Boltes, M. and Seyfried, A.: Collecting Pedestrian Trajectories; In: Neurocomputing, Special Issue on Behaviours in Video, vol. 100, pp. 127-133 (2013)
+```
+@article{BOLTES2013127,
+    title = {Collecting pedestrian trajectories},
+    journal = {Neurocomputing},
+    volume = {100},
+    pages = {127-133},
+    year = {2013},
+    note = {Special issue: Behaviours in video},
+    issn = {0925-2312},
+    doi = {https://doi.org/10.1016/j.neucom.2012.01.036},
+    author = {Maik Boltes and Armin Seyfried},
+    keywords = {Pedestrian detection, Laboratory experiment},
+}
+```
+
+Software version (v0.9):
+```
+@software{boltes_maik_2021_5126562,
+  author       = {Boltes, Maik and
+                  Boomers, Ann Katrin and
+                  Adrian, Juliane and
+                  Brualla, Ricardo Martin and
+                  Graf, Arne and
+                  Häger, Paul and
+                  Hillebrand, Daniel and
+                  Kilic, Deniz and
+                  Lieberenz, Paul and
+                  Salden, Daniel and
+                  Schrödter, Tobias},
+  title        = {PeTrack},
+  month        = jul,
+  year         = 2021,
+  publisher    = {Zenodo},
+  version      = {v0.9},
+  doi          = {10.5281/zenodo.5126562},
+  url          = {https://doi.org/10.5281/zenodo.5126562}
+}
+```
+
+A list of all versions can be found [here]( https://doi.org/10.5281/zenodo.5078176).
+To find your corresponding version, check the `about` menu or look into the terminal output of PeTrack.
+
 ## License
 This project is licensed under the terms of the GPLv3 license. For further information see [LICENSE](./LICENSE).
 
diff --git a/ui/about.ui b/ui/about.ui
index 0b395419736df2f4e5f3237adf405f6f65bad2f6..b896f9a4cadd506ab25ebc6e7a898405f4a8f0ea 100644
--- a/ui/about.ui
+++ b/ui/about.ui
@@ -7,7 +7,7 @@
     <x>0</x>
     <y>0</y>
     <width>862</width>
-    <height>334</height>
+    <height>775</height>
    </rect>
   </property>
   <property name="windowTitle">
@@ -17,7 +17,7 @@
    <property name="geometry">
     <rect>
      <x>510</x>
-     <y>290</y>
+     <y>740</y>
      <width>341</width>
      <height>32</height>
     </rect>
@@ -54,129 +54,311 @@
      <x>120</x>
      <y>50</y>
      <width>721</width>
-     <height>221</height>
+     <height>671</height>
     </rect>
    </property>
-   <layout class="QHBoxLayout" name="horizontalLayout" stretch="2,3">
+   <layout class="QVBoxLayout" name="verticalLayout" stretch="1,2">
     <item>
-     <widget class="QGroupBox" name="grbVersion">
+     <layout class="QHBoxLayout" name="horizontalLayout" stretch="0,0">
+      <property name="sizeConstraint">
+       <enum>QLayout::SetMinimumSize</enum>
+      </property>
+      <item>
+       <widget class="QGroupBox" name="grbVersion">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="title">
+         <string>Version</string>
+        </property>
+        <widget class="QWidget" name="formLayoutWidget">
+         <property name="geometry">
+          <rect>
+           <x>9</x>
+           <y>29</y>
+           <width>271</width>
+           <height>181</height>
+          </rect>
+         </property>
+         <layout class="QFormLayout" name="lytVersion">
+          <property name="fieldGrowthPolicy">
+           <enum>QFormLayout::FieldsStayAtSizeHint</enum>
+          </property>
+          <item row="0" column="0">
+           <widget class="QLabel" name="lblVersion">
+            <property name="text">
+             <string>Version:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="1" column="0">
+           <widget class="QLabel" name="lblCommitHash">
+            <property name="text">
+             <string>Commit hash:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="2" column="0">
+           <widget class="QLabel" name="lblCommitDate">
+            <property name="text">
+             <string>Commit date:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="3" column="0">
+           <widget class="QLabel" name="lblCommitBranch">
+            <property name="text">
+             <string>Commit branch:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="4" column="0">
+           <widget class="QLabel" name="lblCompiler">
+            <property name="text">
+             <string>Compiler:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="6" column="0">
+           <widget class="QLabel" name="lblCompileDate">
+            <property name="text">
+             <string>Compile date:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="0" column="1">
+           <widget class="QLabel" name="lblVersionValue">
+            <property name="text">
+             <string>TextLabel</string>
+            </property>
+           </widget>
+          </item>
+          <item row="1" column="1">
+           <widget class="QLabel" name="lblCommitHashValue">
+            <property name="text">
+             <string>TextLabel</string>
+            </property>
+           </widget>
+          </item>
+          <item row="2" column="1">
+           <widget class="QLabel" name="lblCommitDateValue">
+            <property name="text">
+             <string>TextLabel</string>
+            </property>
+           </widget>
+          </item>
+          <item row="3" column="1">
+           <widget class="QLabel" name="lblCommitBranchValue">
+            <property name="text">
+             <string>TextLabel</string>
+            </property>
+           </widget>
+          </item>
+          <item row="4" column="1">
+           <widget class="QLabel" name="lblCompilerValue">
+            <property name="text">
+             <string>TextLabel</string>
+            </property>
+           </widget>
+          </item>
+          <item row="6" column="1">
+           <widget class="QLabel" name="lblCompileDateValue">
+            <property name="text">
+             <string>TextLabel</string>
+            </property>
+           </widget>
+          </item>
+          <item row="5" column="0">
+           <widget class="QLabel" name="lblCompilerVersion">
+            <property name="text">
+             <string>Compiler Version:</string>
+            </property>
+           </widget>
+          </item>
+          <item row="5" column="1">
+           <widget class="QLabel" name="lblCompilerVersionValue">
+            <property name="text">
+             <string>TextLabel</string>
+            </property>
+           </widget>
+          </item>
+         </layout>
+        </widget>
+       </widget>
+      </item>
+      <item>
+       <widget class="QGroupBox" name="grbAuthors">
+        <property name="sizePolicy">
+         <sizepolicy hsizetype="Preferred" vsizetype="MinimumExpanding">
+          <horstretch>0</horstretch>
+          <verstretch>0</verstretch>
+         </sizepolicy>
+        </property>
+        <property name="title">
+         <string>© Forschungszentrum Juelich GmbH</string>
+        </property>
+        <widget class="QWidget" name="gridLayoutWidget">
+         <property name="geometry">
+          <rect>
+           <x>0</x>
+           <y>20</y>
+           <width>351</width>
+           <height>201</height>
+          </rect>
+         </property>
+         <layout class="QGridLayout" name="lytAuthors"/>
+        </widget>
+       </widget>
+      </item>
+     </layout>
+    </item>
+    <item>
+     <widget class="QGroupBox" name="groupBox">
       <property name="sizePolicy">
-       <sizepolicy hsizetype="Minimum" vsizetype="Preferred">
+       <sizepolicy hsizetype="Preferred" vsizetype="Expanding">
         <horstretch>0</horstretch>
         <verstretch>0</verstretch>
        </sizepolicy>
       </property>
       <property name="title">
-       <string>Version</string>
+       <string>How to cite</string>
       </property>
-      <widget class="QWidget" name="formLayoutWidget">
+      <widget class="QWidget" name="gridLayoutWidget_2">
        <property name="geometry">
         <rect>
-         <x>9</x>
-         <y>29</y>
-         <width>271</width>
-         <height>181</height>
+         <x>10</x>
+         <y>30</y>
+         <width>701</width>
+         <height>411</height>
         </rect>
        </property>
-       <layout class="QFormLayout" name="lytVersion">
-        <property name="fieldGrowthPolicy">
-         <enum>QFormLayout::FieldsStayAtSizeHint</enum>
-        </property>
-        <item row="0" column="0">
-         <widget class="QLabel" name="lblVersion">
-          <property name="text">
-           <string>Version:</string>
+       <layout class="QGridLayout" name="gridLayout_2">
+        <item row="3" column="0">
+         <widget class="QLabel" name="label_2">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
           </property>
-         </widget>
-        </item>
-        <item row="1" column="0">
-         <widget class="QLabel" name="lblCommitHash">
           <property name="text">
-           <string>Commit hash:</string>
+           <string>Software:</string>
           </property>
          </widget>
         </item>
-        <item row="2" column="0">
-         <widget class="QLabel" name="lblCommitDate">
+        <item row="0" column="0">
+         <widget class="QLabel" name="label">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
           <property name="text">
-           <string>Commit date:</string>
+           <string>&lt;html&gt;&lt;head/&gt;&lt;body&gt;&lt;p&gt;Please cite the general paper and the corresponding software version in your publications, if PeTrack helps your research. More information can found in the &lt;a href=&quot;https://jugit.fz-juelich.de/ped-dyn-emp/petrack/-/wikis/home#how-to-cite&quot;&gt;&lt;span style=&quot; text-decoration: underline; color:#0000ff;&quot;&gt;Wiki.&lt;/span&gt;&lt;/a&gt;.&lt;/p&gt;&lt;/body&gt;&lt;/html&gt;</string>
+          </property>
+          <property name="alignment">
+           <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
+          </property>
+          <property name="wordWrap">
+           <bool>true</bool>
+          </property>
+          <property name="openExternalLinks">
+           <bool>true</bool>
           </property>
          </widget>
         </item>
-        <item row="3" column="0">
-         <widget class="QLabel" name="lblCommitBranch">
+        <item row="1" column="0">
+         <widget class="QLabel" name="label_3">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
           <property name="text">
-           <string>Commit branch:</string>
+           <string>General paper:</string>
           </property>
          </widget>
         </item>
         <item row="4" column="0">
-         <widget class="QLabel" name="lblCompiler">
-          <property name="text">
-           <string>Compiler:</string>
+         <widget class="QPlainTextEdit" name="plainTextEdit_2">
+          <property name="enabled">
+           <bool>true</bool>
           </property>
-         </widget>
-        </item>
-        <item row="6" column="0">
-         <widget class="QLabel" name="lblCompileDate">
-          <property name="text">
-           <string>Compile date:</string>
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Expanding">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
           </property>
-         </widget>
-        </item>
-        <item row="0" column="1">
-         <widget class="QLabel" name="lblVersionValue">
-          <property name="text">
-           <string>TextLabel</string>
+          <property name="font">
+           <font>
+            <family>Monospace</family>
+           </font>
           </property>
-         </widget>
-        </item>
-        <item row="1" column="1">
-         <widget class="QLabel" name="lblCommitHashValue">
-          <property name="text">
-           <string>TextLabel</string>
+          <property name="readOnly">
+           <bool>true</bool>
           </property>
-         </widget>
-        </item>
-        <item row="2" column="1">
-         <widget class="QLabel" name="lblCommitDateValue">
-          <property name="text">
-           <string>TextLabel</string>
+          <property name="plainText">
+           <string>@software{boltes_maik_2021_5126562,
+  author       = {Boltes, Maik and
+                  Boomers, Ann Katrin and
+                  Adrian, Juliane and
+                  Brualla, Ricardo Martin and
+                  Graf, Arne and
+                  Häger, Paul and
+                  Hillebrand, Daniel and
+                  Kilic, Deniz and
+                  Lieberenz, Paul and
+                  Salden, Daniel and
+                  Schrödter, Tobias},
+  title        = {PeTrack},
+  month        = jul,
+  year         = 2021,
+  publisher    = {Zenodo},
+  version      = {v0.9},
+  doi          = {10.5281/zenodo.5126562},
+  url          = {https://doi.org/10.5281/zenodo.5126562}
+}</string>
           </property>
          </widget>
         </item>
-        <item row="3" column="1">
-         <widget class="QLabel" name="lblCommitBranchValue">
-          <property name="text">
-           <string>TextLabel</string>
+        <item row="2" column="0">
+         <widget class="QPlainTextEdit" name="plainTextEdit">
+          <property name="enabled">
+           <bool>true</bool>
           </property>
-         </widget>
-        </item>
-        <item row="4" column="1">
-         <widget class="QLabel" name="lblCompilerValue">
-          <property name="text">
-           <string>TextLabel</string>
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="MinimumExpanding" vsizetype="Expanding">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
           </property>
-         </widget>
-        </item>
-        <item row="6" column="1">
-         <widget class="QLabel" name="lblCompileDateValue">
-          <property name="text">
-           <string>TextLabel</string>
+          <property name="font">
+           <font>
+            <family>Monospace</family>
+           </font>
           </property>
-         </widget>
-        </item>
-        <item row="5" column="0">
-         <widget class="QLabel" name="lblCompilerVersion">
-          <property name="text">
-           <string>Compiler Version:</string>
+          <property name="readOnly">
+           <bool>true</bool>
           </property>
-         </widget>
-        </item>
-        <item row="5" column="1">
-         <widget class="QLabel" name="lblCompilerVersionValue">
-          <property name="text">
-           <string>TextLabel</string>
+          <property name="plainText">
+           <string>@article{BOLTES2013127,
+    title = {Collecting pedestrian trajectories},
+    journal = {Neurocomputing},
+    volume = {100},
+    pages = {127-133},
+    year = {2013},
+    note = {Special issue: Behaviours in video},
+    issn = {0925-2312},
+    doi = {https://doi.org/10.1016/j.neucom.2012.01.036},
+    author = {Maik Boltes and Armin Seyfried},
+    keywords = {Pedestrian detection, Laboratory experiment},
+}</string>
           </property>
          </widget>
         </item>
@@ -184,24 +366,6 @@
       </widget>
      </widget>
     </item>
-    <item>
-     <widget class="QGroupBox" name="grbAuthors">
-      <property name="title">
-       <string>© Forschungszentrum Juelich GmbH</string>
-      </property>
-      <widget class="QWidget" name="gridLayoutWidget">
-       <property name="geometry">
-        <rect>
-         <x>10</x>
-         <y>30</y>
-         <width>461</width>
-         <height>181</height>
-        </rect>
-       </property>
-       <layout class="QGridLayout" name="lytAuthors"/>
-      </widget>
-     </widget>
-    </item>
    </layout>
   </widget>
   <widget class="QLabel" name="lblHeadline">
@@ -220,7 +384,6 @@
  </widget>
  <resources>
   <include location="../icons/icons.qrc"/>
-  <include location="../icons/icons.qrc"/>
  </resources>
  <connections>
   <connection>