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15 December 1981, Code message from the Dutch Minister of Foreign Affairs, Max van der Stoel, to the Dutch Ambassador in Warsaw, Joost van der Kun
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18 December 1981, Code message from the Dutch Ambassador in Warsaw, Joost van der Kun, to the Dutch Ministry of Foreign Affairs
17 December 1980, Code message from the Dutch Ambassador in Warsaw, Joost van der Kun, to the Dutch Ministry of Foreign Affairs
15 December 1981, Code message from the Dutch Ambassador in Warsaw, Joost van der Kun, to the Dutch Ministry of Foreign Affairs (excerpt)
19 October 1981, Code message from the Dutch Ambassador in Warsaw, Joost van der Kun, to the Dutch Ministry of Foreign Affairs
21 July 1981, Letter from the Dutch Ambassador in Warsaw, Joost van der Kun, to the Dutch Minister of Foreign Affairs, Chris van der Klaauw
25 July 1980, Code message from the Dutch Embassy Councellor in Warsaw, Paul Lagendijk, to the Dutch Ministry of Foreign Affairs
Dutch Hospitality: The 1952 German-Jewish-Israeli Negotiations amid Post-Holocaust and Post-Imperial Tensions
Dutch and Belgian artistic and intellectual rivalry in interwar London
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La légation des Pays-Bas espagnols en cour de Rome au temps de l'agent Laurent du Blioul (1573-1598). Acteurs et institution