- Author: Stephan Habscheid, Gero Hoch, Heike Sahm, Volker Stein
- Language: German
- Year: 2013
- Author: Anna Mühlherr (editor), Heike Sahm (editor), Monika Schausten (editor), Bruno Quast (editor)
- Language: German
- Year: 2016
- Author: Heike Sahm (editor), Wilhelm Heizmann (editor), Victor Millet (editor)
- Language: German
- Year: 2019
- Author: Victor Millet (editor), Heike Sahm (editor)
- Language: German
- Year: 2014
- Author: Victor Millet (editor), Heike Sahm (editor)
- Language: German
- Year: 2014
- Author: Heike Sahm (editor), Wilhelm Heizmann (editor), Victor Millet (editor)
- Language: German
- Year: 2019
- Author: Heike Sahm
- Language: German
- Year: 2002
- Author: Heike Sahm Wilhelm Heizmann Victor Millet (Hrsg.)
- Language: German, English
- Year: 2019
- Author: Anna Mühlherr Heike Sahm Monika Schausten Bruno Quast
- Language: German
- Year: 2016