
- Author: Francis Joseph Kovach
- Language: German
- Year: 1961

- Author: Wilhelm Hiss
- Language: German
- Year: 1964

- Author: Eusebio S. J. Colomer
- Language: German
- Year: 1961

- Author: Nikolaus von Kues (editor), Paul Wilpert (editor)
- Language: German
- Year: 1967

- Author: Willy Theiler
- Language: German
- Year: 1966

- Author: Albert Zimmermann (editor)
- Language: German
- Year: 1968