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- Language: English
- Year: 2010

- Author: Dr.-Ing. Johannes Looman (auth.)
- Language: German
- Year: 1996

- Author: Kai-Uwe Schmitt Peter F. Niederer Markus H. Muser Felix Walz (auth.)
- Language: German
- Year: 2010

- Author: Jürgen Stoffregen (auth.)
- Language: German
- Year: 2010