Hajek, André ; Bock, Jens-Oliver ; Saum, Kai-Uwe [P:(DE-He78)97343bbd9545a4b87574e74329dabfd1] ; Matschinger, Herbert ; Brenner, Hermann [P:(DE-He78)90d5535ff896e70eed81f4a4f6f22ae2] ; Holleczek, Bernd [P:(DE-He78)53e1a2846c69064e27790dbf349ccaec] ; Haefeli, Walter E ; Heider, Dirk ; König, Hans-Helmut