- Author: Eva Elm (editor), Nicole Hartmann (editor)
- Language: English
- Year: 2020
- Author: Karl-Hartmann Necker
- Language: German
- Year: 1962
- Author: Nicolai Hartmann, Stanton Coit
- Language: English
- Year: 1932
- Author: Nicolai Hartmann
- Language: German
- Year: 1923
- Author: Nicolai Hartmann
- Language: German
- Year: 1929
- Author: Wilfried Hartmann (editor), Annette Grabowsky (editor)
- Language: German
- Year: 2007
- Author: Max Hartmann
- Language: German
- Year: 1956
- Author: Hartmann von Aue (editor), Friedrich Maurer (editor)
- Language: German
- Year: 1958
- Author: Max Hartmann
- Language: German
- Year: 1965
- Author: Max Hartmann
- Language: German
- Year: 1951