- Author: Wolfgang Karl Härdle, Léopold Simar
- Language: English
- Year: 2015
- Author: Wolfgang Karl Härdle Léopold Simar
- Language: English
- Year: 2019
- Author: Wolfgang Karl Härdle Léopold Simar (auth.)
- Language: English
- Year: 2015
- Author: Wolfgang Karl Härdle Léopold Simar (auth.)
- Language: English
- Year: 2012
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- Language: English
- Year: 2012