- Author: Eric Wagner
- Language: English
- Year: 2020
- Author: Michael Borgolte Wolfgang Eric Wagner (Hrsg.)
- Language: German
- Year: 2000
- Author: Eric Wagner
- Language: English
- Year: 2011
- Author: Eric Wagner
- Language: English
- Year: 2020
- Author: Eric Wagner hD
- Language: English
- Year: 2020
- Author: Eric Wagner
- Language: English
- Year: 2018