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1by International Symposium The European Dimension in Education, 5th, Dillingen, Germany, 1993, National Institute for Curriculum Development (Netherlands), Akademie für Lehrerfortbildung Dillingen (Germany), Scottish Consultative Council on the Curriculum, Landeszentrale für politische Bildung Baden-Württemberg (Germany), Endt, Ernst, Hooghoff, Hansbook bibliotecaUNESCO
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2by International Symposium The European Dimension in Education, 4th, Bad Urach, Germany, 1992, National Institute for Curriculum Development (Netherlands), Akademie für Lehrerfortbildung Dillingen (Germany), Scottish Consultative Council on the Curriculum, Landeszentrale für politische Bildung Baden-Württemberg (Germany), Hooghoff, Hans, Endt, Ernst, Lenaerts, Robertbook bibliotecaUNESCO