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Internationale Geographische Union (1923-)(12)
International Geographical Union. Commission on the History of Geographical Thought(5)
International Union of the History and Philosophy of Science (1956-)(4)
Conference on the Standardization of Geographical Names (4. : 1982 : Genf) (1982-)(1)
Deutschland (Bundesrepublik). Statistisches Bundesamt (1950-1990)(1)