- Author: Olaf Hoffjann
- Language: German
- Year: 2018
- Author: Olaf Hoffjann René Seidenglanz (eds.)
- Language: German
- Year: 2018
- Author: Olaf Hoffjann Hans-Jürgen Arlt (auth.)
- Language: German
- Year: 2015
- Author: Olaf Hoffjann Thomas Pleil (eds.)
- Language: German
- Year: 2015
- Author: Olaf Hoffjann (auth.)
- Language: German
- Year: 2014
- Author: Olaf Hoffjann (auth.)
- Language: German
- Year: 2012
- Author: Olaf Hoffjann (auth.)
- Language: German
- Year: 2007
- Author: Olaf Hoffjann (auth.)
- Language: German
- Year: 2001
- Author: Olaf Hoffjann Roland Stahl (auth.) Olaf Hoffjann Roland Stahl (eds.)
- Language: German
- Year: 2010