- Author: Helga Köpstein (editor), Friedhelm Winkelmann (editor)
- Language: German
- Year: 2022
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- Language: German
- Year: 1984
- Author: Joachim Herrmann (editor), Helga Köpstein (editor), Reimar Müller (editor)
- Language: German
- Year: 1988
- Author: Helga Köpstein (editor), Friedhelm Winkelmann (editor)
- Language: German
- Year: 2022