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1
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2
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3Published: Berlin | Duncker & Humblot | 1997Book
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4Published: Berlin [u.a.] | de Gruyter | 2005Book
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5Published: Köln [u.a.] | Böhlau | 1998Book
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6Published: Berlin | Duncker & Humblot | 1997Book
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7Published: Köln [u.a.] | Böhlau | 2002Book