Book reviews. - Gustav Feichtinger; Ch. Scholz; P. van Beek (Z. Oper. Research, 1983)

Book reviews. - Ulrich Lorscheider; K.-D. Hackbarth; Ch. Scholz; Rolf H. Möhring; Franz Josef Radermacher; Alfred Luhmer; Peter Brucker; Bernd Schiemenz; Gustav Feichtinger (Z. Oper. Research, 1983)

Book reviews. - Mikulás Luptácik; Engelbert Dockner; Alfred Hamerle; Wolfgang Domschke; Ch. Scholz; Anatol Rapoport; L. Fahrmeier; G. Schmidt; Helmut Schellhaas (Z. Oper. Research, 1985)

Book reviews. - Ch. Scholz; Werner Dinkelbach (Z. Oper. Research, 1986)

Book reviews. - Ch. Scholz; Heinz W. Engl (Z. Oper. Research, 1987)

Book reviews. - A. Wakolbinger; Ch. Scholz; Anatol Rapoport (Z. Oper. Research, 1987)