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1.
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München : Beck, 1979.
11.
German | T 80 BAU.W |
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2.
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Oxford : Oxford University Press, 2005.
First edition.
English | K 43 PHI.T |
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3.
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London : Sweet & Maxwell, 2005.
Second edition.
English | K 323 WIL.T |
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4.
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[Place of publication not identified] : [publisher not identified], 2003.
English | G 22 GOL.B |
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