- Author: Peter Herrmann
- Language: German
- Year: 1968
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- Language: French
- Year: 2010
- Author: Virginie Subias Konofal
- Language: French
- Year: 2016
- Author: Kenneth Westphal
- Language: English
- Year: 2017
- Author: Anthony Julius Naro Maria Marta Pereira Scherre
- Language: Portuguese
- Year: 2007
- Author: Kim Ryholt
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- Year: 1997
- Author: Martin Luther (editor), Gerhard Hahn (editor)
- Language: German
- Year: 1967