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- Language: German
- Year: 2017

- Author: Pedro A. Fuertes-Olivera (editor)
- Language: English
- Year: 2010

- Author: Evthymios Chr. Papachristos
- Language: German
- Year: 1900

- Author: Renata Szczepaniak
- Language: German
- Year: 2006

- Author: Laura Karpinska
- Language: English
- Year: 2015

- Author: Vida Jesenšek (editor), Milka Enčeva (editor)
- Language: German
- Year: 2018