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