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Published: London [u.a.] : Cass, 1997.
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6
Published: Bornheim-Merten : Lamuv-Verl, 1980
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7
Published: Frankfurt am Main : Haag + Herchen, 1992.
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8
Published: Bonn : Referat "Öffentlichkeitsarbeit gegen Terrorismus" im Bundesministerium des Innern, 1982
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12
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14
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19
Published: Tübingen : Hohenrain, 1999.
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20
Published: Hamburg : Spiegel-Verl, 1981
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