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1by International Congress of Engineering Deans and Industry Leaders, Paris, 1993, International Union of Technical Associations and Organizationsprogramme and meeting document bibliotecaUNESCO
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2by International Congress of Engineering Deans and Industry Leaders, Paris, 1993, International Union of Technical Associations and Organizationsprogramme and meeting document bibliotecaUNESCO
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3
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4by International Symposium Energy and Society, Paris, 1993, International Social Science Council, International Union of Technical Associations and Organizations, Francophone Academy of Engineeringprogramme and meeting document bibliotecaUNESCO