- Author: Adam Bezvijen Walter Wittke Harry Poulos Hany Shehata
- Language: English
- Year: 2020
- Author: Walter Wittke
- Language: English
- Year: 1990
- Author: Walter Wittke
- Language: English
- Year: 2014
- Author: Prof. Dr.-Ing. Walter Wittke (auth.)
- Language: German
- Year: 1984