Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Richard Kohnen, Pressepolitik des Deutschen Bundes. Methoden staatlicher Pressepolitik nach der Revolution von 1848, Max Niemeyer Verlag: Tübingen 1995, VO, 222 S.(= Studien u. Texte zur Sozialgeschichte der Literatur, Bd. 50)