Prof. Dr. Jochen BAUERREIS recommends the participation in the colloquium on the role of the “certificat de coutume” in international commercial law, which will take place at the “Conseil Supérieur du Notariat (CNS)” in Paris in partnership with LexisNexis and under the scientific direction of his colleague and friend Professor Gustavo CERQUEIRA, with the support of the “Société de Législation Comparée (SLC)”.