(F/E/S) : French, English and Spanish version; See English version in ACCESS TO THE TECHNOLOGICAL INFORMATION CONTAINED IN PATENT DOCUMENTS : ECONOMIC COMMISSION FOR LATIN AMERICA, AFRICA AND WESTERN ASIA : PJ/98/1-4; PJ/98/5-1 - 5-2; See French version in ACCES A L'INFORMATION TECHNIQUE CONTENUE DANS LES DOCUMENTS DE BREVETS : COMMISSION ECONOMIQUE POUR L'AMERIQUE LATINE : PJ/98/1-4; PJ/98/5-1 - 5-2; Meeting : Barbados, 26-28 de julio de 1978;.