Procedure - Application initiating proceedings - Formal requirements - Application signed by a lawyer not authorised to practise before a court of a Member State or of a State which is a party to the European Economic Area Agreement - Inadmissible (EC Statute of the Court of Justice, Art. 17, third and fourth paras, and Art. 19, first and second paras; Rules of Procedure of the Court of First Instance, Art. 43(1))