1
Published: Opladen : Leske + Budrich, 1995
Book
2
3
Published: Frankfurt/M. : Beltz, 1980
Book
4
by Noelle-Neumann, Elisabeth, 1916-2010 1916-2010
Published: Allensbach : Inst. für Demoskopie, 1984
Published: Allensbach : Inst. für Demoskopie, 1984
Book
5
Book