diff --git a/src/graph/model/linegraphmanager.h b/src/graph/model/linegraphmanager.h
index 26b55041..5908bdfc 100644
--- a/src/graph/model/linegraphmanager.h
+++ b/src/graph/model/linegraphmanager.h
@@ -9,6 +9,15 @@
 
 class LineGraphScene;
 
+/*!
+ * \brief Class for managing LineGraphScene instances
+ *
+ * The manager listens for changes on railway plan and
+ * decides which of the registered LineGraphScene needs
+ * to be updated.
+ *
+ * \sa LineGraphScene
+ */
 class LineGraphManager : public QObject
 {
     Q_OBJECT
diff --git a/src/graph/model/linegraphscene.h b/src/graph/model/linegraphscene.h
index b19ee75a..a3807b2a 100644
--- a/src/graph/model/linegraphscene.h
+++ b/src/graph/model/linegraphscene.h
@@ -16,14 +16,25 @@ namespace sqlite3pp {
 class database;
 }
 
+/*!
+ * \brief Enum to describe view content type
+ */
 enum class LineGraphType
 {
-    NoGraph = 0,
-    SingleStation,
-    RailwaySegment,
-    RailwayLine
+    NoGraph = 0, //!< No content displayed
+    SingleStation, //!< Show a single station
+    RailwaySegment, //!< Show two adjacent stations and the segment in between
+    RailwayLine //!< Show a complete railway line (multiple adjacent segments)
 };
 
+/*!
+ * \brief Class to store line information
+ *
+ * Stores information to draw railway content in a LineGraphView
+ *
+ * \sa LineGraphManager
+ * \sa LineGraphView
+ */
 class LineGraphScene : public QObject
 {
     Q_OBJECT
diff --git a/src/graph/model/stationgraphobject.h b/src/graph/model/stationgraphobject.h
index 6b1b26ab..97cdd193 100644
--- a/src/graph/model/stationgraphobject.h
+++ b/src/graph/model/stationgraphobject.h
@@ -9,9 +9,10 @@
 #include <QRgb>
 
 /*!
- * Graph of a railway station
+ * \brief Graph of a railway station
  *
  * Contains informations to draw station name, platforms and jobs
+ * \sa PlatformGraph
  */
 class StationGraphObject
 {
@@ -23,7 +24,7 @@ class StationGraphObject
     utils::StationType stationType;
 
     /*!
-     * Graph of the job while is stopping
+     * \brief Graph of the job while is stopping
      *
      * Contains informations to draw job line on top of the PlatformGraph
      */
@@ -38,7 +39,7 @@ class StationGraphObject
     } JobStopGraph;
 
     /*!
-     * Graph of the job while is moving
+     * \brief Graph of the job while is moving
      *
      * Contains informations to draw job line between two adjacent stations
      */
@@ -57,9 +58,11 @@ class StationGraphObject
     } JobLineGraph;
 
     /*!
-     * Graph of a station track (platform)
+     * \brief Graph of a station track (platform)
      *
      * Contains informations to draw platform line and header name
+     * \sa JobStopGraph
+     * \sa JobLineGraph
      */
     typedef struct
     {
diff --git a/src/graph/view/backgroundhelper.h b/src/graph/view/backgroundhelper.h
index 1357be1e..fad1686e 100644
--- a/src/graph/view/backgroundhelper.h
+++ b/src/graph/view/backgroundhelper.h
@@ -7,6 +7,15 @@ class QPainter;
 
 class LineGraphScene;
 
+/*!
+ * \brief Helper class to render LineGraphView contents
+ *
+ * Contains static helper functions to draw each part of the view
+ *
+ * \sa LineGraphView
+ * \sa HourPanel
+ * \sa StationLabelsHeader
+ */
 class BackgroundHelper
 {
 public:
diff --git a/src/graph/view/hourpanel.h b/src/graph/view/hourpanel.h
index 1534abd0..dba5c93a 100644
--- a/src/graph/view/hourpanel.h
+++ b/src/graph/view/hourpanel.h
@@ -3,6 +3,15 @@
 
 #include <QWidget>
 
+/*!
+ * \brief Helper widget to draw hour labels
+ *
+ * Draws hour labels on the view vertical header
+ *
+ * \sa LineGraphScene
+ * \sa LineGraphView
+ * \sa BackgroundHelper
+ */
 class HourPanel : public QWidget
 {
     Q_OBJECT
diff --git a/src/graph/view/linegraphtoolbar.h b/src/graph/view/linegraphtoolbar.h
index d640c3d9..7f49d8cf 100644
--- a/src/graph/view/linegraphtoolbar.h
+++ b/src/graph/view/linegraphtoolbar.h
@@ -12,6 +12,14 @@ class CustomCompletionLineEdit;
 class LineGraphScene;
 class ISqlFKMatchModel;
 
+/*!
+ * \brief Toolbar to select railway stations or lines
+ *
+ * Consist of a combobox and a line edit
+ * The combo box selects the content type (\sa LineGraphType)
+ * The line edit allows to choose which item of selected type
+ * should be shown.
+ */
 class LineGraphToolbar : public QWidget
 {
     Q_OBJECT
diff --git a/src/graph/view/linegraphview.h b/src/graph/view/linegraphview.h
index f80ddaf1..c11d16ab 100644
--- a/src/graph/view/linegraphview.h
+++ b/src/graph/view/linegraphview.h
@@ -8,6 +8,15 @@ class LineGraphScene;
 class StationLabelsHeader;
 class HourPanel;
 
+/*!
+ * \brief Widget to display a LineGraphScene
+ *
+ * A scrollable widget which renders LineGraphScene contents
+ * Moving the mouse cursor on the contents, tooltips will show
+ *
+ * \sa LineGraphWidget
+ * \sa BackgroundHelper
+ */
 class LineGraphView : public QAbstractScrollArea
 {
     Q_OBJECT
diff --git a/src/graph/view/linegraphwidget.h b/src/graph/view/linegraphwidget.h
index 99f68c23..43c10cdf 100644
--- a/src/graph/view/linegraphwidget.h
+++ b/src/graph/view/linegraphwidget.h
@@ -9,6 +9,16 @@ class LineGraphScene;
 class LineGraphView;
 class LineGraphToolbar;
 
+/*!
+ * \brief An all-in-one widget as a railway line view
+ *
+ * This widget encapsulate a toolbar to select which
+ * contents user wants to see (stations, segments or railway lines)
+ * and a view which renders the chosen contents
+ *
+ * \sa LineGraphToolbar
+ * \sa LineGraphView
+ */
 class LineGraphWidget : public QWidget
 {
     Q_OBJECT
diff --git a/src/graph/view/stationlabelsheader.h b/src/graph/view/stationlabelsheader.h
index 0b3297a8..08608062 100644
--- a/src/graph/view/stationlabelsheader.h
+++ b/src/graph/view/stationlabelsheader.h
@@ -5,6 +5,16 @@
 
 class LineGraphScene;
 
+/*!
+ * \brief Helper widget to draw station labels
+ *
+ * Draws station labels (with platform numbers below) on
+ * the view horizontal header
+ *
+ * \sa LineGraphScene
+ * \sa LineGraphView
+ * \sa BackgroundHelper
+ */
 class StationLabelsHeader : public QWidget
 {
     Q_OBJECT