- Author: Johanna Sigl
- Language: German
- Year: 2018
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- Language: German
- Year: 2018
- Author: Rudolf Schmitt Julia Schröder Larissa Pfaller
- Language: German
- Year: 2018
- Author: Nicole Burzan Ronald Hitzler
- Language: German
- Year: 2018
- Author: Christine Moritz Michael Corsten
- Language: German
- Year: 2018
- Author: Christian Meier zu Verl
- Language: German
- Year: 2018
- Author: Urszula Strawinska-Zanko Larry S. Liebovitch
- Language: English
- Year: 2018
- Author: Norma RA Romm
- Language: English
- Year: 2018
- Author: Norman Blaikie
- Language: English
- Year: 2000
- Author: Alexander Rosenberg
- Language: English
- Year: 2015
