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Article
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Published: Moskau : APN-Verl., 1987
Book
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Article
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Published: Washington/D.C : U.S. Government Printing Office, 1986
Book
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Published: Washington/D.C : U.S. Government Printing Office, 1988
Book
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Published: New Brunswick, USA [u.a.] : Transaction Publishers, 1991
Book
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Published: Washington/D.C : U.S. Government Printing Office, 1990
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Published: Washington : GPO, 1978
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