\subsection{Mediaplayer sample}\label{samplemediaplayer}
This sample demonstrates how to use all the features of
-\helpref{wxMediaCtrl}{wxmediactrl} and play various types of sound, video,
+\helpref{wxMediaCtrl}{wxmediactrl} and play various types of sound, video,
and other files.
\subsection{Notebook sample}\label{samplenotebook}
-This samples shows family of controls which derive from wxBookCtrl base class.
+This samples shows \helpref{wxBookCtrl}{wxbookctrloverview} family of controls.
Although initially it was written to demonstrate \helpref{wxNotebook}{wxnotebook}
only, it can now be also used to see \helpref{wxListbook}{wxlistbook} and
\helpref{wxChoicebook}{wxchoicebook} in action. Test each of the controls, their