(b) Where copying or translation work is carried out at the request of a party, the cost shall, in so far as the Chief Registrar considers it excessive, be paid for by that party on the scale of charges referred to in Article 13(5) of these Rules. Article 69 Without prejudice to the preceding Article, the following shall be regarded as recoverable costs: (a) Sums payable to witnesses and experts under Article 47 of these Rules; (b) Expenses necessarily incurred by the parties for the purpose of the proceedings, in particular the travel and subsistence expenses and the remuneration of agents, advisers or lawyers. Article 70 1. If there is a dispute concerning the costs to be recovered, the Court shall, on application by the party concerned and after hearing the opposite party , make an order. 2. The parties may, for the purposes of enforcement, apply for an authenticated copy of the order. Article 71 1. Sums due from the Registry of the Court shall be paid in the currency of the country where the Court has its seat. 2. At the request of the person entitled to any sum, it shall be paid in the currency of the country where the expenses to be refunded were incurred or where the steps in respect of which payment is due were taken. 3. Other debtors shall make payment in the currency of their country of origin. 4. Conversions of currency shall be made at the official rates of exchange ruling on the day of payment in the country where the Court has its seat. CHAPTER VII DISCONTINUANCE Article 72 If, before the Court has given its decision, the parties reach a settlement of their dispute and intimate to the Court the abandonment of their claims, the President shall order the case to be removed from the register and shall give a decision as to costs in accordance with Article 66(8), having regard to any proposals made by the parties on the matter.