- Author: Wolfram Manzenreiter, Ralph Lützeler, Sebastian Polak-Rottmann
- Language: English
- Year: 2020
- Author: Wolfram Manzenreiter Ralph Lützeler Sebastian Polak-Rottmann
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- Year: 2020
- Author: Martin Hemmert Ralph Lützeler (auth.)
- Language: German
- Year: 1998