
- Author: Dr. M. Friedmann (auth.)
- Language: German
- Year: 1920

- Author: Albert Sichler (auth.)
- Language: German
- Year: 1921

Die Technik der Individual-Psychologie: Zweiter Teil: Die Seele des Schwererziehbaren Schulkindes
pdf
- Author: Dr. Alfred Adler (auth.)
- Language: German
- Year: 1930

- Author: Prof. Dr. H. Wilbrand Weil. Prof. Dr. A. Saenger (auth.)
- Language: German
- Year: 1922

- Author: Professor Dr. Karl Velhagen (auth.)
- Language: German
- Year: 1943

- Author: Professor Dr. Hans Lauber (auth.)
- Language: German
- Year: 1944

- Author: R. Kuczynski P. Quante (auth.)
- Language: German
- Year: 1926

- Author: Prof. Dr. med. Georg Hohmann (auth.)
- Language: German
- Year: 1939