- Author: Panikos Panayi
- Language: English
- Year: 2017
- Author: Guido Ceronetti (editor)
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- Author: Kurt Gossweiler
- Language: German
- Year: 1982
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- Language: German
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- Language: German
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- Author: Thiele Ulrich
- Language: German
- Year: 2008
- Author: Summers Robert S.
- Language: English
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