Has participated in:
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The reader's guide to the NATO summit in Washington : 23 - 25 April 1999
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Intermediate - Range Nuclear Forces (INF) : progress Report to ministers
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60 Jahre Nato : Geschichte, Gegenwart, Perspektiven
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Opportunities for hydrological data in support of climate change studies : NATO advanced research workshop ; [Lahnstein, 26 - 30 August, 1991] ; a contribution to the international hydrological...