Speech given at Ministry of Foreign Relations of Brazil and United Nations Organization (UNO), Rio de Janeiro, Brazil, 1985.
Speeches 
Negotiation of International Contracts
Speech given at “Fundação Centro de Estudos do Comércio Exterior”, São Paulo, Brazil, 1985.
How to Elaborate Countertrade Contracts – Local and Foreign Legislation on Countertrade
Speech given at “Fundação Centro de Estudos do Comércio Exterior”, São Paulo, Brazil, 1985.
The Mechanisms and Legislation of Countertrade
Speech given at “Fundação Centro de Estudos do Comércio Exterior”, São Paulo, Brazil, 1984.
Legal Aspects of Company Aquisition
Speech given at Aquisition Consultants (Division of Catho Progresso Profissional, Commercial Ltda.), São Paulo, Brazil, 1983.