Author(s): Bishop, George E.; Hippler, Hans-Jürgen; Schwarz, Norbert; Strack, Fritz.- 1987. 21,14p.

Author(s): Nebel, Antje; Strack, Fritz; Schwarz, Norbert.- 1988. 26p.

Author(s): Schwarz, Norbert; Strack, Fritz.- 1988. 40p.

Author(s): Schwarz, Norbert; Strack, Fritz; Müller, Gesine; Chassein, Brigitte.- 1987. 16,3p.

Author(s): Bless, Herbert; Schwarz, Norbert; Strack, Fritz; Bohner, Gerd.- 1989. 52,7p.

Author(s): Bohner, Gerd; Bless, Herbert; Schwarz, Norbert; Strack, Fritz.- 1988. 24,3p.

Author(s): Schwarz, Norbert; Strack, Fritz; Hilton, Denis; Naderer, Gabi.- 1987. 23,3p.

Author(s): Strack, Fritz; Martin, Leonhard L.; Schwarz, Norbert.- 1987. 33,3p.