- Author: Harald Müller, Christian Jaser, Thomas Woelki
- Language: German
- Year: 2018
- Author: Harald Müller, Brigitte Hotz
- Language: German
- Year: 2012
- Author: Lars Schmeink (editor), Hans-Harald Müller (editor)
- Language: German
- Year: 2012
- Author: Christoph König (editor), Hans-Harald Müller (editor), Werner Röcke (editor)
- Language: German
- Year: 2000
- Author: Tom Kindt, Hans-Harald Müller
- Language: English
- Year: 2006
- Author: Tom Kindt (editor), Hans-Harald Müller (editor)
- Language: English
- Year: 2003
- Author: Harald Müller
- Language: German
- Year: 2020
Mittelalter
pdf
- Author: Harald Müller
- Language: German
- Year: 2015
Mittelalter
pdf
- Author: Harald Müller
- Language: German
- Year: 2010