3. Member States and Institutions of the Community shall take immediately all necessary measures to ensure execution of the decision of the Court. Article 23: Interpretation of Decisions If the meaning or scope of a decision or advisory opinion is in doubt, the Court shall construe it on application by any party or any Institution of the Community establishing an interest therein. Article 24: Legal Costs Unless the Court shall decide otherwise, each party to the dispute shall bear its own legal expenses. Article 25: Application for Revision 1. An application for revision for a decision may be made only when it is based upon the discovery of some fact of such a nature as to be a decisive factor, which fact was, when the decision was given, unknown to the Court and also to the party claiming revision, provided always that such ignorance was not due to negligence. 2. The proceedings for revision shall be opened by a decision of the Court expressly recording the existence of the new fact, recognising that it has such a character as to lay the case open to revision and declaring the application admissible on this ground. 3. The Court may require prior compliance with the terms of the decision before it admits proceedings in revision. 4. No application for revision may be after five (5) years from the date of decision. 5. The decision of the Court has no binding force except between the parties and in respect of that particular case. Article 26: Seat of the Court 1. The seat of the Court shall be fixed by the Authority. 2. However, where circumstances or facts of the case so demand, the Court may decide to sit in the territory of another Member State. Article 27: Session of the Court 1. Sessions of the Court shall be convened by its President. 2. The dates and duration of the sessions shall be fixed by the President and shall be determined by the roll of the Court. 3. The President and other members of the Court shall be bound to attend all sessions of the Court unless they are prevented from attending by any reasons duly explained to the Authority or the President of the Court, as the case may be.