- Author: Karl Christian Führer, Hans-Böckler-Stiftung
- Language: German
- Year: 2017
- Author: Karl Christian Führer
- Language: German
- Year: 2015
- Author: Karl Christian Führer
- Language: German
- Year: 2015
- Author: Karl Christian Führer Corey Ross (eds.)
- Language: English
- Year: 2006