1. The Court shall elect its President and Vice-President for three years; they may be re-elected. 2. The Court shall appoint its Registrar and may provide for the appointment of such other officers as may be necessary. Article 22 1. The seat of the Court shall be established at The Hague. This, however, shall not prevent the Court from sitting and exercising its functions elsewhere whenever the Court considers it desirable. 2. The President and the Registrar shall reside at the seat of the Court. Article 23 1. The Court shall remain permanently in session, except during the judicial vacations, the dates and duration of which shall be fixed by the Court. 2. Members of the Court are entitled to periodic leave, the dates and duration of which shall be fixed by the Court, having in mind the distance between The Hague and the home of each judge. 3. Members of the Court shall be bound, unless they are on leave or prevented from attending by illness or other serious reasons duly explained to the President, to hold themselves permanently at the disposal of the Court. Article 24 1. If, for some special reason, a member of the Court considers that he should not take part in the decision of a particular case, he shall so inform the President. 2. If the President considers that for some special reason one of the members of the Court should not sit in a particular case, he shall give him notice accordingly.