Jahn, Robert W.
[Author];
Diettrich, Andreas
[Author];
Niethammer, Manuela
[Author];
Seltrecht, Astrid
[Author]
;
Jahn, Robert W.
[Editor];
Diettrich, Andreas
[Editor];
Niethammer, Manuela
[Editor];
Seltrecht, Astrid
[Editor];
Willingmann, Armin
[Writer of preface]
W. Bertelsmann Verlag