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Open Meeting of Working groups of the 11th Plenary Meeting of COSPAR (11th : 1968 : Tokyo)：Space research 9

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Open Meeting of Working groups of the 10th Plenary Meeting of COSPAR (10th : 1967 : London)：Space research 8

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Winter Meeting on Low Temperature Physics (7th : 1991 : Mexico)：Superconductiong ceramics

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International Meeting on Modern Ceramics Technologies (5th : 1982 : Lignano-Sabbiadoro)：Ceramic powders : Preparation, consolidation and sintering

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International Meeting of Fundamental Physics (17th : 1989 : LeKeitio, Vizcaya)：physics at LEP

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European Meeting on Cybernetics and Systems Research (10th : 1990 : University of Vienna)：Cybernetics and systems`90

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