Any communication sent to the Central Authority or to another authority of a Contracting State shall be in the original language, and shall be accompanied by a translation into the official language or one of the official languages of the other State or, where that is not feasible, a translation into French or English. However, a Contracting State may, by making a reservation in accordance with Article 60, object to the use of either French or English, but not both. A Contracting State may, in accordance with Article 60, a) reserve the jurisdiction of its authorities to take measures directed to the protection of property of a child situated on its territory; b) reserve the right not to recognise any parental responsibility or measure in so far as it is incompatible with any measure taken by its authorities in relation to that property. The reservation may be restricted to certain categories of property. The Secretary General of the Hague Conference on Private International Law shall at regular intervals convoke a Special Commission in order to review the practical operation of the Convention. CHAPTER VII FINAL CLAUSES The Convention shall be open for signature by the States which were Members of the Hague Conference on Private International Law at the time of its Eighteenth Session. It shall be ratified, accepted or approved and the instruments of ratification, acceptance or approval shall be deposited with the Ministry of Foreign Affairs of the Kingdom of the Netherlands, depositary of the Convention. Any other State may accede to the Convention after it has entered into force in accordance with Article 61, paragraph 1. The instrument of accession shall be deposited with the depositary.