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Paul Bachhausen: Mülheim-Bach1
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Paul Bachhausen: Salamandra salamandra terrestris
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Paul Bachhausen: Mülheim-Bach2
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Paul Bachhausen: Bsal Hinweisschild
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Paul Bachhausen: Mülheim-Bach3
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Paul Bachhausen: Salamandra salamandra terrestris
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Paul Bachhausen: Salamandra salamandra terrestris
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Paul Bachhausen: Mülheim-Bach4
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Paul Bachhausen: Mülheim-Bach5
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Paul Bachhausen: Mülheim - Bach 6