- Author: Juergen B Donges (editor), Andreas Freytag (editor)
- Language: German
- Year: 1998
- Author: John J. Kirton, Joseph P. Daniels, Andreas Freytag
- Language: English
- Year: 2001
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- Language: English
- Year: 2011
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- Year: 2010
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- Language: English
- Year: 2010