Convention on the Accession of the Kingdom of Spain and the Portuguese Republic to the Convention on Jurisdiction and the Enforcement of Judgments in Civil and Commercial Matters and to the Protocol on its Interpretation by the Court of Justice with the Adjustments made to them by the Convention on the Accession of the Kingdom of Denmark, of Ireland and of the United Kingdom of Great Britain and Northern Ireland and the Adjustments made to them by the Convention on the Accession of the Hellenic Republic:artikel 20