1. 

Judicial proceedings — Costs — Taxation — Recoverable costs — Definition — Expenses necessarily incurred by the parties — Scope (Rules of Procedure of the Court of Justice, Art. 144(b)) (see paras 8, 9)

2. 

Judicial proceedings — Costs — Taxation — Recoverable costs — Elements to be taken into consideration — National scales of lawyers’ fees — Not included (Rules of Procedure of the Court of Justice, Art. 144(b)) (see paras 10-12)

3. 

Judicial proceedings — Costs — Taxation — Recoverable costs — Intervener (Rules of Procedure of the Court of Justice, Art. 144(b)) (see para. 18)

4. 

Judicial proceedings — Costs — Taxation — Recoverable costs — Conditions for reimbursement — Provision of detailed justification of services claimed (Rules of Procedure of the Court of Justice, Art. 144(b)) (see paras 20, 21)