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Published: London [u.a.] : Cass, 1997.
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Published: Bonn : Referat "Öffentlichkeitsarbeit gegen Terrorismus" im Bundesministerium des Innern, 1982
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8
Published: Bornheim-Merten : Lamuv-Verl, 1980
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Published: La Tour de l'Aigues : Ed. de l'Aube, 1996.
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Published: New York : Pitman Publ. Corporation, 1971.
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Published: Bonn : Dietz, 1994.
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