- Author: Holger Sonnabend
- Language: German
- Year: 2021
- Author: Holger Sonnabend
- Language: German
- Year: 2002
- Author: Holger Sonnabend (auth.)
- Language: German
- Year: 1999
- Author: Holger Sonnabend (eds.)
- Language: German
- Year: 1999
- Author: Holger Sonnabend (eds.)
- Language: German
- Year: 2006
- Author: Holger Sonnabend
- Language: German
- Year: 2007
- Author: Holger Sonnabend
- Language: German
- Year: 2007
- Author: Holger Sonnabend
- Language: German
- Year: 2007