- Author: Welter Reinhard
- Language: German
- Year: 1984
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- Language: German
- Year: 1986
- Author: Walker Matthias
- Language: German
- Year: 2021
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- Language: German
- Year: 1972
Das internationale Privatrecht der nichtehelichen Kindschaft: Eine rechtsvergleichende Untersuchung
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- Author: Thümmel Roderich C.
- Language: German
- Year: 1983
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- Language: German
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- Language: German
- Year: 1993