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International Reunion for the History of Nautical Science and Hydrography, 1987, Sagres, Portugal
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Séminaire de droit international et de droit européen, 1988, Neuchâtel, Switzerland
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IFAC Workshop on Urban, Regional, and National Planning, 1977, Kyoto, Japan
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Langford Conference of the Department of Classics, 2007, Florida State University
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International Labour Conference, 1995, Geneva, Switzerland
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Euro-Ibero American Seminar: Cooperation on Drugs and Drug Addiction Policies, 1998, Porto, Portugal
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Colloque international "La perception de l'événement dans la presse de langue allemande et française", 1998, Université de la Sarre
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Algonquian Conference
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Conference on the Global Food Value Chain: Competition Law and Policy at Crossroads, 2016, Saint Petersburg, Russia
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Conférence sur les transports régionaux, 1989, Cologne, Germany
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Conference on Major International Economic Issues, 1976, University of Southern California
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Convegno su lavoro e occupazione nella prospettiva dell'unione economica e monetaria europea, 1979, Rome, Italy
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OECD International Conference on the Economic, Social and Environmental Problems of Cities, 1992, Paris, France
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West Virginia University Conference on Life-Span Developmental Psychology, 1976
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Conference on Subsistence and Peasant Economics, 1965, University of Hawaii
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Migration im Metropolenraum Berlin/Brandenburg, 1996, Erkner, Germany
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Conference on National Monetary Policies and the International Financial System, 1972, Racine, Wis
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Shambaugh Conference on Comparative Legislative Behavior Research, 1969, University of Iowa
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Oslo Conference on Freedom of Religion and Belief, 1998
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Conference of the Parties (United Nations Framework Convention on Climate Change), 2010, Cancún, Mexico
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Biennale di Venezia, Venice, Italy
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International Colloquium in the Philosophy of Science, 1965, Bedford College
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Congreso Internacional "A Historia a Debate", 1993, Santiago de Compostela, Spain
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Challenges in European Private Law, 2009, Münster, Germany
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Round Table on Transport Economics, 1992, Lyon, France
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Indonesia Update Conference, 2008, Australian National University
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UEFA Intertoto Cup (Soccer tournament)
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International Conference on Minority Languages, 1980, University of Glasgow
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Europe-America Conference, 1973, Amsterdam, Netherlands