- Author: Eckehard Schulz, Sebastian Maisel
- Language: English, Arabic
- Year: 2013
- Author: Eckehard Schulz Günther Krahl Wolfgang Reuschel
- Language: English
- Year: 2000
- Author: Eckehard Schulz, Günther Krahl, Wolfgang Reuschel, James Dickins
- Language: English
- Year: 2000
- Author: Eckehard Schulz Günther Krahl Wolfgang Reuschel
- Language: English
- Year: 2000
- Author: Eckehard Schulz
- Language: English
- Year: 2012
- Author: Eckehard Schulz Günther Krahl Wolfgang Reuschel
- Language: English
- Year: 2000
- Author: Eckehard Schulz Günther Krahl Wolfgang Reuschel
- Language: English
- Year: 2000