be required to accept this Convention as a basis for the negotiations between the Contracting States and that State necessary to ensure the implementation of the last paragraph of Article 220 of the Treaty establishing the European Economic Community.
 The necessary adjustments may be the subject of a special convention between the Contracting States of the one part and the new Member State of the other part.
 Article 64
 The Secretary-General of the Council of the European Communities shall notify the signatory States of:
 (a)
 the deposit of each instrument of ratification;
 (b)
 the date of entry into force of this Convention;
 (c)
 any declaration received pursuant to the second paragraph of Article 60;
 (d)
 any declaration received pursuant to Article IV of the Protocol;
 (e)
 any communication made pursuant to Article VI of the Protocol.
 Article 65
 The Protocol annexed to this Convention by common accord of the Contracting States shall form an integral part thereof.
 Article 66
 This Convention is concluded for an unlimited period.
 Article 67
 Any Contracting State may request the revision of this Convention. In this event, a revision conference shall be convened by the President of the Council of the European Communities.
 Article 68
 This Convention, drawn up in a single original in the Dutch, French, German and Italian languages, all four texts being equally authentic, shall be deposited in the archives of the Secretariat of the Council of the European Communities. The Secretary-General shall transmit a certified copy to the Government of each signatory State.
 In witness whereof, the undersigned Plenipotentiaries have signed this Convention.
 Done at Brussels this twenty-seventh day of September in the year one thousand nine hundred and sixty-eight.
 For His Majesty the King of the Belgians,
 Pierre HARMEL
 For the President of the Federal Republic of Germany,
 Willy BRANDT
 For the President of the French Republic,
 Michel DEBRÉ
 For the President of the Italian Republic,
 Guiseppe MEDICI
 For His Royal Highness the Grand Duke of Luxembourg,
 Pierre GRÉGOIRE
 For Her Majesty the Queen of the Netherlands,
 J.M.A.H. LUNS
 PROTOCOL
 The High Contracting Parties have agreed upon the following provisions, which shall be annexed to the Convention:
 Article I
 Any person domiciled in Luxembourg who is sued in a court of another Contracting State pursuant to Article 5 (1) may refuse to submit to the jurisdiction of that court. If the defendant does not enter an appearance the court shall declare of its own motion that it has no jurisdiction.
 An agreement conferring jurisdiction, within the meaning of Article 17, shall be valid with respect of a person domiciled in Luxembourg only if that person has expressly and specifically so agreed.
 Article II
 Without prejudice to any more favourable provisions of national laws, persons domiciled in a Contracting State who are being prosecuted in the criminal courts of another Contracting State of which they are not nationals for an offence which was not intentionally committed may be defended by persons qualified to do so, even if they do not appear