Ludwig, Udo
[Author];
Berneburg, Marian
[Author];
Brautzsch, Hans-Ulrich
[Author];
Dietrich, Diemo
[Author];
Grunert, Ruth
[Author];
Kumpmann, Ingmar
[Author];
Lindner, Axel
[Author];
Loose, Brigitte
[Author];
Scheufele, Rolf
[Author];
Zeddies, Götz
[Author]